All done, Sir Charles of St Cheese. Here's the summary:

---

**Status:** DONE

**Files modified:**
- `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/diff.go` — added `KnownModulesFile` field to `diffOpts`, registered hidden `--known-modules-file` flag, added `resolveKnownPath` helper, inserted best-effort `known.Add(...)` call between the semantic block and the render dispatch
- `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/diff_test.go` — added `os` and `path/filepath` imports, appended `TestDiffAddsToKnownAfterSuccess` and `TestDiffDoesNotAddOnFailure`

**Test count:** 13 tests in `./cmd/...`, all PASS, race-clean (`go test -race ./cmd/... -v`)

**Build:** `go vet ./...` and `go build ./...` both clean

**Commit SHA:** `51a2c0e`

**Nothing unexpected** — the `known` package's `Add` function accepts an empty path string and returns an error (which is swallowed via `_ = err`), so the no-op path when `resolveKnownPath` returns `""` is safe. The 404 failure test confirms no file is created when `FetchPair` fails before the Add call is ever reached.

agentId: a51f102b05f075d7a (use SendMessage with to: 'a51f102b05f075d7a' to continue this agent)
<usage>total_tokens: 28653
tool_uses: 16
duration_ms: 100165</usage>

Prompt:
You are implementing Task 3 of the birdseye known-modules cache implementation plan.

## Working Environment

- **Worktree path:** `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`
- **Git branch:** `worktree-birdseye`
- **HEAD:** `171c32a` (Task 2: known hardening tests)
- Use absolute paths or `cd` into the worktree.
- **NEVER push.** **NEVER `git add .` / `git add -A`.**

## Context

Task 1 added `internal/known` (package with `Path()`, `Load()`, `Add()`). Task 2 hardened its tests. Your job: wire the cache update into the CLI `diff` subcommand.

You need to:
1. Add a hidden `--known-modules-file` flag (test override)
2. Add a `resolveKnownPath(override string) string` helper
3. After successful `runDiff` (positional path), call `known.Add(...)` as a best-effort step
4. Add two integration tests: one for the success path adding the address, one for the failure path NOT adding

The `runDiff` function in `apps/birdseye/cmd/diff.go` is the existing positional-args handler. The new `Add` call must happen AFTER the diff has been successfully computed (i.e., after `archive.Extract` and `diff.Textual` succeed) but BEFORE the final render dispatch (TUI/plain/JSON). That way: a failed fetch/extract does NOT add (correct), but a failed render does not block the add (also correct — the diff already succeeded conceptually).

## Task Description (Verbatim)

### Task 3: `cmd/diff` — `--known-modules-file` flag + post-success Add + tests

**Files:**
- Modify: `apps/birdseye/cmd/diff.go`
- Modify: `apps/birdseye/cmd/diff_test.go`

- [ ] **Step 1: Write failing tests** — append to `apps/birdseye/cmd/diff_test.go`:

```go
import (
	// existing imports preserved
	"os"
	"path/filepath"
)

func TestDiffAddsToKnownAfterSuccess(t *testing.T) {
	srv := fakeCrowTwoVersions(t)
	knownFile := filepath.Join(t.TempDir(), "known-modules")
	root := NewRootCmd()
	var stdout bytes.Buffer
	root.SetOut(&stdout)
	root.SetArgs([]string{
		"diff",
		"iac/comply/aws", "1.0.0", "1.1.0",
		"--crow-url", srv.URL,
		"--plain",
		"--cache-dir", t.TempDir(),
		"--known-modules-file", knownFile,
	})
	if err := root.ExecuteContext(context.Background()); err != nil {
		t.Fatalf("execute: %v", err)
	}
	body, err := os.ReadFile(knownFile)
	if err != nil {
		t.Fatalf("known-modules file not created: %v", err)
	}
	if !strings.Contains(string(body), "iac/comply/aws") {
		t.Errorf("known-modules missing address:\n%s", body)
	}
}

func TestDiffDoesNotAddOnFailure(t *testing.T) {
	mux := http.NewServeMux()
	// All download attempts return 404
	mux.HandleFunc("/v1/modules/", func(w http.ResponseWriter, _ *http.Request) {
		w.WriteHeader(http.StatusNotFound)
	})
	srv := httptest.NewServer(mux)
	t.Cleanup(srv.Close)

	knownFile := filepath.Join(t.TempDir(), "known-modules")
	root := NewRootCmd()
	root.SetErr(&bytes.Buffer{})
	root.SetArgs([]string{
		"diff",
		"iac/comply/aws", "1.0.0", "1.1.0",
		"--crow-url", srv.URL,
		"--plain",
		"--cache-dir", t.TempDir(),
		"--known-modules-file", knownFile,
	})
	if err := root.ExecuteContext(context.Background()); err == nil {
		t.Fatal("expected error for 404s")
	}
	if _, statErr := os.Stat(knownFile); !os.IsNotExist(statErr) {
		t.Errorf("known-modules file should NOT exist after failure, stat err=%v", statErr)
	}
}
```

NOTE: Merge new imports (`os`, `path/filepath`, `http`, `httptest`) into the existing block at the top of `diff_test.go`. Some are likely already there.

- [ ] **Step 2: Run, expect FAIL** (`unknown flag --known-modules-file`)

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test ./cmd/... -run TestDiffAddsToKnown -v`

- [ ] **Step 3: Update `apps/birdseye/cmd/diff.go`**

Add the field to `diffOpts`:

```go
type diffOpts struct {
	Semantic         bool
	Plain            bool
	CacheDir         string
	KnownModulesFile string // NEW
}
```

Add the flag in `newDiffCmd` (find the existing flag registrations and add this group):

```go
c.Flags().StringVar(&o.KnownModulesFile, "known-modules-file", "", "override known-modules autocomplete file (mostly for tests)")
_ = c.Flags().MarkHidden("known-modules-file")
```

Add a helper at file scope (below `defaultCacheDir`):

```go
// resolveKnownPath returns override if non-empty, otherwise the default
// known.Path(). Errors fall back to "" so Load and Add become no-ops.
func resolveKnownPath(override string) string {
	if override != "" {
		return override
	}
	p, err := known.Path()
	if err != nil {
		return ""
	}
	return p
}
```

Add `"github.com/immuta/operations/apps/birdseye/internal/known"` to the import block.

In `runDiff`, insert the best-effort Add immediately AFTER `result := diff.Result{Files: diff.Textual(modAExtracted, modBExtracted)}` and the optional `if o.Semantic { ... }` block, but BEFORE the JSON / TUI / plain render dispatch:

```go
	if err := known.Add(resolveKnownPath(o.KnownModulesFile),
		id.Namespace+"/"+id.Name+"/"+id.Provider); err != nil {
		_ = err // best-effort: cache failure does not block diff
	}
```

To clarify: the current end of `runDiff` looks roughly like:

```go
result := diff.Result{Files: diff.Textual(modAExtracted, modBExtracted)}
if o.Semantic {
    sem, err := diff.Semantic(modAExtracted, modBExtracted)
    ...
    result.Semantic = sem
}

if g.JSON {
    return renderJSON(cmd.OutOrStdout(), result)
}
if !o.Plain && isTTY(cmd.OutOrStdout()) {
    return tui.RunBrowser(ctx, result)
}
return renderPlain(cmd.OutOrStdout(), result)
```

The new Add call goes BETWEEN the optional semantic block and the JSON/TUI/plain dispatch — i.e., right after the `if o.Semantic { ... }` closing brace, before `if g.JSON { ... }`.

- [ ] **Step 4: Run, expect PASS**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./cmd/... -v`
Expected: All previous + 2 new tests PASS.

- [ ] **Step 5: Verify build**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go vet ./... && go build ./...`
Expected: clean.

- [ ] **Step 6: Commit**

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && git add apps/birdseye/cmd/ && git commit -m "feat(birdseye): cache module address after successful CLI diff"
```

If `go.sum` was modified (unlikely — known is a local internal package), include it.

## Notes & Style

- The `id` variable is already in scope in `runDiff` — it's the `api.ModuleIdentifier` parsed earlier from `args[0]`.
- Use `_ = err` to mark the swallowed error — matches the pattern in `internal/registry/registry.go` for cache-write failures.
- `id.Namespace+"/"+id.Name+"/"+id.Provider` produces the canonical `ns/name/provider` address string. (`api.ModuleIdentifier` doesn't have a `String()` method — that's the convention.)
- The failure test uses an httptest server returning 404 for all `/v1/modules/...` requests. Crow client `Download` returns `ErrNotFound`, which `Fetch`/`FetchPair` propagates, and `runDiff` returns it to cobra — non-zero exit, no cache write.

## Code Organization

`diff.go` already does heavy lifting; adding ~15 lines for flag + Add call + helper is fine. Don't split into a new file.

## Self-Review Checklist

- [ ] Both new tests pass under `-race`
- [ ] All previous `cmd` tests still pass
- [ ] `go vet ./...` clean
- [ ] `go build ./...` succeeds
- [ ] `--known-modules-file` is marked hidden (won't appear in `--help`)
- [ ] Add call is positioned BETWEEN semantic block and render dispatch (so a successful diff with failed render still caches, but a failed fetch does NOT)
- [ ] `--known-modules-file` flag registered ONLY on diff (not root, not versions — Task 4 adds it to versions separately)
- [ ] Commit message exactly: `feat(birdseye): cache module address after successful CLI diff`

## Report Format

- **Status:** DONE | DONE_WITH_CONCERNS | BLOCKED | NEEDS_CONTEXT
- Files modified
- Test count + race-clean
- Commit SHA
- Anything unexpected


Build birdseye CLI for Terraform module diffing


Agent

Combined review Task 3

Prompt:
Combined spec + code-quality review of Task 3 (cmd/diff post-success cache add) in worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

Diff: `git diff 171c32a..51a2c0e -- apps/birdseye/cmd/`

## Spec — What Was Requested

In `apps/birdseye/cmd/diff.go`:

1. Add `KnownModulesFile string` field to `diffOpts`.
2. Register hidden flag `--known-modules-file` in `newDiffCmd`:
   ```go
   c.Flags().StringVar(&o.KnownModulesFile, "known-modules-file", "", "...")
   _ = c.Flags().MarkHidden("known-modules-file")
   ```
3. Add helper `resolveKnownPath(override string) string` returning `override` if non-empty, else `known.Path()`, with empty string fallback on error.
4. In `runDiff`, AFTER the textual+semantic diff is built but BEFORE the JSON/TUI/plain render dispatch, call:
   ```go
   if err := known.Add(resolveKnownPath(o.KnownModulesFile),
       id.Namespace+"/"+id.Name+"/"+id.Provider); err != nil {
       _ = err
   }
   ```
5. Add `internal/known` import.

In `apps/birdseye/cmd/diff_test.go`:
- `TestDiffAddsToKnownAfterSuccess` — happy path, asserts file contains "iac/comply/aws"
- `TestDiffDoesNotAddOnFailure` — 404 fakeCrow, asserts file does NOT exist

Commit message exact: `feat(birdseye): cache module address after successful CLI diff`.

## Quality Focus

- Add is positioned correctly: a failed extract/fetch must NOT add; a failed render still adds (the diff conceptually succeeded).
- `resolveKnownPath` doesn't leak: if `known.Path()` fails AND override is empty, the function returns "". The caller passes "" to `known.Add(...)`. **Verify this empty-path edge case doesn't leak a temp file in CWD** — read `internal/known/known.go` Add() and trace what happens when path="".
- Add error swallow is consistent with `internal/registry/registry.go`'s `_ = err` pattern.
- Hidden flag is correctly excluded from `--help`.

If the empty-path edge case is buggy (temp file leak in CWD when `os.UserConfigDir()` fails AND no override), flag it as Important. The fix would be early-return in `known.Add`/`known.Load` when path is empty.

## Report Format

**Spec:** ✅ / ❌
**Quality:** Strengths / Issues / Assessment

Be terse.


Now I have everything needed. Let me trace the empty-path edge case in `Add`:

When `path = ""`:
- `filepath.Dir("")` returns `"."` (current working directory)
- `os.MkdirAll(".", 0o755)` — no-op, succeeds
- `Load("")` — `os.Open("")` fails with a non-`IsNotExist` error → `Load` returns an error → `Add` returns that error immediately

So `Add("", ...)` returns an error before creating any temp file. The error is then swallowed by `_ = err`. No temp file leak.

---

**Spec: ✅**

All five spec items are implemented exactly as described:

1. `KnownModulesFile string` field added to `diffOpts` ✅
2. Hidden flag registered with `MarkHidden` ✅
3. `resolveKnownPath(override string) string` implemented correctly ✅
4. `known.Add(...)` called after diff build, before render dispatch ✅
5. `internal/known` import added ✅

Both test cases present and match spec intent ✅

---

**Quality:**

**Strengths:**
- Placement of `known.Add` is exactly right — after `sem` semantic build succeeds, before the render branch. A failed fetch/extract returns early before this line; a failed render does not block the cache write.
- Empty-path edge case is safe. `Add("")` hits `os.Open("")` in `Load`, which returns a non-`IsNotExist` error, causing `Load` and therefore `Add` to return early — no temp file is created, no CWD pollution.
- `_ = err` swallow is consistent with the codebase pattern and the comment accurately explains intent.
- `resolveKnownPath` is clean, single-responsibility, and correctly falls back without panicking.
- `TestDiffDoesNotAddOnFailure` correctly uses `os.IsNotExist` rather than just checking the error from `Stat`, which is the right idiom.
- The hidden flag comment in the struct field `// test override for known-modules cache path` is appropriately honest about its purpose.

**Issues:**
- None. The empty-path edge case (the primary concern) does NOT leak a temp file — `os.Open("")` fails with an error that is not `IsNotExist`, so `Load` returns that error, and `Add` returns before reaching `CreateTemp`.
- The `_ = tmp.Close()` + `_ = os.Remove(tmpName)` cleanup pattern in `known.Add` on write failure is thorough. No resource leaks on the happy or error paths.

**Assessment:** Clean implementation. Spec-complete, no bugs, no edge-case leaks. The quality concern flagged in the spec brief is a non-issue given how `os.Open("")` behaves on POSIX systems.

agentId: afbc991e6231727d5 (use SendMessage with to: 'afbc991e6231727d5' to continue this agent)
<usage>total_tokens: 16346
tool_uses: 2
duration_ms: 19748</usage>

Prompt:
Combined spec + code-quality review of Task 3 (cmd/diff post-success cache add) in worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

Diff: `git diff 171c32a..51a2c0e -- apps/birdseye/cmd/`

## Spec — What Was Requested

In `apps/birdseye/cmd/diff.go`:

1. Add `KnownModulesFile string` field to `diffOpts`.
2. Register hidden flag `--known-modules-file` in `newDiffCmd`:
   ```go
   c.Flags().StringVar(&o.KnownModulesFile, "known-modules-file", "", "...")
   _ = c.Flags().MarkHidden("known-modules-file")
   ```
3. Add helper `resolveKnownPath(override string) string` returning `override` if non-empty, else `known.Path()`, with empty string fallback on error.
4. In `runDiff`, AFTER the textual+semantic diff is built but BEFORE the JSON/TUI/plain render dispatch, call:
   ```go
   if err := known.Add(resolveKnownPath(o.KnownModulesFile),
       id.Namespace+"/"+id.Name+"/"+id.Provider); err != nil {
       _ = err
   }
   ```
5. Add `internal/known` import.

In `apps/birdseye/cmd/diff_test.go`:
- `TestDiffAddsToKnownAfterSuccess` — happy path, asserts file contains "iac/comply/aws"
- `TestDiffDoesNotAddOnFailure` — 404 fakeCrow, asserts file does NOT exist

Commit message exact: `feat(birdseye): cache module address after successful CLI diff`.

## Quality Focus

- Add is positioned correctly: a failed extract/fetch must NOT add; a failed render still adds (the diff conceptually succeeded).
- `resolveKnownPath` doesn't leak: if `known.Path()` fails AND override is empty, the function returns "". The caller passes "" to `known.Add(...)`. **Verify this empty-path edge case doesn't leak a temp file in CWD** — read `internal/known/known.go` Add() and trace what happens when path="".
- Add error swallow is consistent with `internal/registry/registry.go`'s `_ = err` pattern.
- Hidden flag is correctly excluded from `--help`.

If the empty-path edge case is buggy (temp file leak in CWD when `os.UserConfigDir()` fails AND no override), flag it as Important. The fix would be early-return in `known.Add`/`known.Load` when path is empty.

## Report Format

**Spec:** ✅ / ❌
**Quality:** Strengths / Issues / Assessment

Be terse.


Empty-path edge case is actually safe — `os.Open("")` returns a non-IsNotExist error so `Load` propagates before `CreateTemp` runs. Task 3 ate. Moving to Task 4.


Updated task #19 status


Updated task #20 status


Implement Task 4: ValidArgsFunction

Prompt:
You are implementing Task 4 of the birdseye known-modules cache implementation plan — shell completion via cobra `ValidArgsFunction` on the `diff` and `versions` subcommands.

## Working Environment

- **Worktree path:** `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`
- **Git branch:** `worktree-birdseye`
- **HEAD:** `51a2c0e` (Task 3: cache module address after successful CLI diff)
- Use absolute paths or `cd` into the worktree.
- **NEVER push.** **NEVER `git add .` / `git add -A`.**

## Context

Tasks 1-3 built the `internal/known` package and added a `--known-modules-file` flag + post-success cache write to `cmd/diff.go`. The `resolveKnownPath(override string) string` helper exists in `diff.go` and is reusable.

Your job: add cobra `ValidArgsFunction` for shell tab-completion on BOTH the diff and versions subcommands. The diff subcommand already has its `--known-modules-file` flag (from Task 3); the versions subcommand needs the same flag added because it's currently flagless.

Cobra exposes a `__complete` pseudo-command that lets tests drive completion directly: `root.SetArgs([]string{"__complete", "diff", "--known-modules-file", knownFile, ""})` triggers the registered ValidArgsFunction and writes the suggestions to stdout, one per line.

Note: `birdseye versions ns/n/p` success does NOT add to the cache (intentional). Only diff and the interactive picker write. But versions DOES read the cache for completion — that's the asymmetry.

## Task Description (Verbatim)

### Task 4: `cmd/diff` + `cmd/versions` — ValidArgsFunction for shell completion

**Files:**
- Modify: `apps/birdseye/cmd/diff.go`
- Modify: `apps/birdseye/cmd/versions.go`
- Modify: `apps/birdseye/cmd/versions_test.go`
- Modify: `apps/birdseye/cmd/diff_test.go`

- [ ] **Step 1: Write failing tests** — append to `apps/birdseye/cmd/diff_test.go`:

```go
func TestDiffValidArgsFunctionLoadsCache(t *testing.T) {
	knownFile := filepath.Join(t.TempDir(), "known-modules")
	if err := os.WriteFile(knownFile, []byte("alpha/aaa/aws\nbravo/bbb/gcp\n"), 0o600); err != nil {
		t.Fatal(err)
	}

	root := NewRootCmd()
	root.SetArgs([]string{"__complete", "diff", "--known-modules-file", knownFile, ""})
	var stdout bytes.Buffer
	root.SetOut(&stdout)
	if err := root.ExecuteContext(context.Background()); err != nil {
		t.Fatalf("execute completion: %v", err)
	}
	out := stdout.String()
	for _, want := range []string{"alpha/aaa/aws", "bravo/bbb/gcp"} {
		if !strings.Contains(out, want) {
			t.Errorf("completion output missing %q\n%s", want, out)
		}
	}
}
```

And to `apps/birdseye/cmd/versions_test.go`:

```go
import (
	// existing imports preserved
	"os"
	"path/filepath"
)

func TestVersionsValidArgsFunctionLoadsCache(t *testing.T) {
	knownFile := filepath.Join(t.TempDir(), "known-modules")
	if err := os.WriteFile(knownFile, []byte("alpha/aaa/aws\n"), 0o600); err != nil {
		t.Fatal(err)
	}

	root := NewRootCmd()
	root.SetArgs([]string{"__complete", "versions", "--known-modules-file", knownFile, ""})
	var stdout bytes.Buffer
	root.SetOut(&stdout)
	if err := root.ExecuteContext(context.Background()); err != nil {
		t.Fatalf("execute completion: %v", err)
	}
	if !strings.Contains(stdout.String(), "alpha/aaa/aws") {
		t.Errorf("completion missing entry:\n%s", stdout.String())
	}
}

func TestVersionsDoesNotAddToKnown(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		_ = json.NewEncoder(w).Encode(api.ListVersionsResponse{
			Modules: []api.ModuleVersions{
				{Versions: []api.VersionEntry{{Version: "1.0.0"}}},
			},
		})
	}))
	defer srv.Close()

	knownFile := filepath.Join(t.TempDir(), "known-modules")
	root := NewRootCmd()
	var stdout bytes.Buffer
	root.SetOut(&stdout)
	root.SetArgs([]string{"versions", "iac/comply/aws",
		"--crow-url", srv.URL,
		"--known-modules-file", knownFile,
	})
	if err := root.ExecuteContext(context.Background()); err != nil {
		t.Fatalf("execute: %v", err)
	}
	if _, statErr := os.Stat(knownFile); !os.IsNotExist(statErr) {
		t.Errorf("known-modules file should NOT exist after versions, stat err=%v", statErr)
	}
}
```

NOTE: Merge new imports into the existing block. `os`, `path/filepath`, `http`, `httptest`, `json`, `api` may need to be added depending on what's already imported.

- [ ] **Step 2: Run, expect FAIL** (versions has no `--known-modules-file` flag; diff has no `ValidArgsFunction`)

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test ./cmd/... -run "TestDiffValidArgs|TestVersionsValidArgs|TestVersionsDoesNot" -v`

- [ ] **Step 3: Add `ValidArgsFunction` to `newDiffCmd` in `apps/birdseye/cmd/diff.go`**

Just before the closing `return c` of `newDiffCmd`, add:

```go
	c.ValidArgsFunction = func(_ *cobra.Command, args []string, _ string) ([]string, cobra.ShellCompDirective) {
		if len(args) > 0 {
			return nil, cobra.ShellCompDirectiveNoFileComp
		}
		suggestions, _ := known.Load(resolveKnownPath(o.KnownModulesFile))
		return suggestions, cobra.ShellCompDirectiveNoFileComp
	}
```

- [ ] **Step 4: Update `apps/birdseye/cmd/versions.go`**

Replace the existing function body with:

```go
func newVersionsCmd(g *GlobalFlags) *cobra.Command {
	var knownModulesFile string
	c := &cobra.Command{
		Use:           "versions <module>",
		Short:         "List published versions of a Crow module",
		Args:          cobra.ExactArgs(1),
		SilenceUsage:  true,
		SilenceErrors: true,
		RunE: func(cmd *cobra.Command, args []string) error {
			id, err := parseModuleAddress(args[0])
			if err != nil {
				return err
			}
			cli := client.New(g.CrowURL, client.WithHTTPClient(newHTTPClient(g.Timeout)))
			versions, err := cli.ListVersions(cmd.Context(), id)
			if err != nil {
				return err
			}
			for _, v := range versions {
				fmt.Fprintln(cmd.OutOrStdout(), v)
			}
			return nil
		},
	}
	c.Flags().StringVar(&knownModulesFile, "known-modules-file", "", "override known-modules autocomplete file (mostly for tests)")
	_ = c.Flags().MarkHidden("known-modules-file")
	c.ValidArgsFunction = func(_ *cobra.Command, args []string, _ string) ([]string, cobra.ShellCompDirective) {
		if len(args) > 0 {
			return nil, cobra.ShellCompDirectiveNoFileComp
		}
		suggestions, _ := known.Load(resolveKnownPath(knownModulesFile))
		return suggestions, cobra.ShellCompDirectiveNoFileComp
	}
	return c
}
```

Add `"github.com/immuta/operations/apps/birdseye/internal/known"` to the imports of `versions.go`.

- [ ] **Step 5: Run, expect PASS**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./cmd/... -v`
Expected: All previous + 3 new tests PASS.

- [ ] **Step 6: Verify build**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go vet ./... && go build ./...`
Expected: clean.

- [ ] **Step 7: Commit**

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && git add apps/birdseye/cmd/ && git commit -m "feat(birdseye): shell completion for diff and versions from known-modules cache"
```

## Notes & Style

- The cobra `__complete` pseudo-command is the official testing surface for `ValidArgsFunction`. It writes one suggestion per line followed by a `:N` directive line — `strings.Contains` is enough for test assertions.
- `cobra.ShellCompDirectiveNoFileComp` disables fallback filename completion, so users don't see local files mixed with module addresses.
- The `if len(args) > 0` guard means we only suggest module addresses for the FIRST positional arg. Subsequent args (versions) get no suggestions.
- `versions` reuses `resolveKnownPath` from `diff.go` (same package) — no need to duplicate.
- `versions.go` declares its own local `knownModulesFile` var (not on `diffOpts`) because there's no per-command opts struct for versions; that's fine and idiomatic.

## Code Organization

`diff.go` and `versions.go` each get the small `ValidArgsFunction` addition inline. No new files.

## Self-Review Checklist

- [ ] All 3 new tests pass under `-race`
- [ ] All previous tests still pass
- [ ] `go vet ./...` clean
- [ ] `go build ./...` succeeds
- [ ] `versions` does NOT call `known.Add` anywhere
- [ ] `versions` DOES read the cache via `Load` in its ValidArgsFunction
- [ ] Both subcommands return `ShellCompDirectiveNoFileComp` to suppress filename fallback
- [ ] Commit message exactly: `feat(birdseye): shell completion for diff and versions from known-modules cache`

## Report Format

- **Status:** DONE | DONE_WITH_CONCERNS | BLOCKED | NEEDS_CONTEXT
- Files modified
- Test count + race-clean
- Commit SHA
- Anything unexpected


---

**Status:** DONE

**Files modified:**
- `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/diff.go` — Added `ValidArgsFunction` just before `return c` in `newDiffCmd`
- `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/versions.go` — Replaced function body with flagged version including `--known-modules-file` flag, `ValidArgsFunction`, and `known` import
- `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/diff_test.go` — Added `TestDiffValidArgsFunctionLoadsCache`
- `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/versions_test.go` — Added `os`/`path/filepath` imports, `TestVersionsValidArgsFunctionLoadsCache`, and `TestVersionsDoesNotAddToKnown`

**Test count:** 17 total (3 new), all pass under `-race`

**Commit SHA:** `4d747fc`

**Nothing unexpected.** The `versions` command correctly reads the cache via `Load` in its `ValidArgsFunction` but never calls `known.Add`, satisfying the intentional asymmetry. Both subcommands return `ShellCompDirectiveNoFileComp` to suppress filename fallback, and the `if len(args) > 0` guard restricts suggestions to the first positional argument only.

agentId: a1dd780715653d9be (use SendMessage with to: 'a1dd780715653d9be' to continue this agent)
<usage>total_tokens: 28417
tool_uses: 13
duration_ms: 91522</usage>

Prompt:
You are implementing Task 4 of the birdseye known-modules cache implementation plan — shell completion via cobra `ValidArgsFunction` on the `diff` and `versions` subcommands.

## Working Environment

- **Worktree path:** `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`
- **Git branch:** `worktree-birdseye`
- **HEAD:** `51a2c0e` (Task 3: cache module address after successful CLI diff)
- Use absolute paths or `cd` into the worktree.
- **NEVER push.** **NEVER `git add .` / `git add -A`.**

## Context

Tasks 1-3 built the `internal/known` package and added a `--known-modules-file` flag + post-success cache write to `cmd/diff.go`. The `resolveKnownPath(override string) string` helper exists in `diff.go` and is reusable.

Your job: add cobra `ValidArgsFunction` for shell tab-completion on BOTH the diff and versions subcommands. The diff subcommand already has its `--known-modules-file` flag (from Task 3); the versions subcommand needs the same flag added because it's currently flagless.

Cobra exposes a `__complete` pseudo-command that lets tests drive completion directly: `root.SetArgs([]string{"__complete", "diff", "--known-modules-file", knownFile, ""})` triggers the registered ValidArgsFunction and writes the suggestions to stdout, one per line.

Note: `birdseye versions ns/n/p` success does NOT add to the cache (intentional). Only diff and the interactive picker write. But versions DOES read the cache for completion — that's the asymmetry.

## Task Description (Verbatim)

### Task 4: `cmd/diff` + `cmd/versions` — ValidArgsFunction for shell completion

**Files:**
- Modify: `apps/birdseye/cmd/diff.go`
- Modify: `apps/birdseye/cmd/versions.go`
- Modify: `apps/birdseye/cmd/versions_test.go`
- Modify: `apps/birdseye/cmd/diff_test.go`

- [ ] **Step 1: Write failing tests** — append to `apps/birdseye/cmd/diff_test.go`:

```go
func TestDiffValidArgsFunctionLoadsCache(t *testing.T) {
	knownFile := filepath.Join(t.TempDir(), "known-modules")
	if err := os.WriteFile(knownFile, []byte("alpha/aaa/aws\nbravo/bbb/gcp\n"), 0o600); err != nil {
		t.Fatal(err)
	}

	root := NewRootCmd()
	root.SetArgs([]string{"__complete", "diff", "--known-modules-file", knownFile, ""})
	var stdout bytes.Buffer
	root.SetOut(&stdout)
	if err := root.ExecuteContext(context.Background()); err != nil {
		t.Fatalf("execute completion: %v", err)
	}
	out := stdout.String()
	for _, want := range []string{"alpha/aaa/aws", "bravo/bbb/gcp"} {
		if !strings.Contains(out, want) {
			t.Errorf("completion output missing %q\n%s", want, out)
		}
	}
}
```

And to `apps/birdseye/cmd/versions_test.go`:

```go
import (
	// existing imports preserved
	"os"
	"path/filepath"
)

func TestVersionsValidArgsFunctionLoadsCache(t *testing.T) {
	knownFile := filepath.Join(t.TempDir(), "known-modules")
	if err := os.WriteFile(knownFile, []byte("alpha/aaa/aws\n"), 0o600); err != nil {
		t.Fatal(err)
	}

	root := NewRootCmd()
	root.SetArgs([]string{"__complete", "versions", "--known-modules-file", knownFile, ""})
	var stdout bytes.Buffer
	root.SetOut(&stdout)
	if err := root.ExecuteContext(context.Background()); err != nil {
		t.Fatalf("execute completion: %v", err)
	}
	if !strings.Contains(stdout.String(), "alpha/aaa/aws") {
		t.Errorf("completion missing entry:\n%s", stdout.String())
	}
}

func TestVersionsDoesNotAddToKnown(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		_ = json.NewEncoder(w).Encode(api.ListVersionsResponse{
			Modules: []api.ModuleVersions{
				{Versions: []api.VersionEntry{{Version: "1.0.0"}}},
			},
		})
	}))
	defer srv.Close()

	knownFile := filepath.Join(t.TempDir(), "known-modules")
	root := NewRootCmd()
	var stdout bytes.Buffer
	root.SetOut(&stdout)
	root.SetArgs([]string{"versions", "iac/comply/aws",
		"--crow-url", srv.URL,
		"--known-modules-file", knownFile,
	})
	if err := root.ExecuteContext(context.Background()); err != nil {
		t.Fatalf("execute: %v", err)
	}
	if _, statErr := os.Stat(knownFile); !os.IsNotExist(statErr) {
		t.Errorf("known-modules file should NOT exist after versions, stat err=%v", statErr)
	}
}
```

NOTE: Merge new imports into the existing block. `os`, `path/filepath`, `http`, `httptest`, `json`, `api` may need to be added depending on what's already imported.

- [ ] **Step 2: Run, expect FAIL** (versions has no `--known-modules-file` flag; diff has no `ValidArgsFunction`)

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test ./cmd/... -run "TestDiffValidArgs|TestVersionsValidArgs|TestVersionsDoesNot" -v`

- [ ] **Step 3: Add `ValidArgsFunction` to `newDiffCmd` in `apps/birdseye/cmd/diff.go`**

Just before the closing `return c` of `newDiffCmd`, add:

```go
	c.ValidArgsFunction = func(_ *cobra.Command, args []string, _ string) ([]string, cobra.ShellCompDirective) {
		if len(args) > 0 {
			return nil, cobra.ShellCompDirectiveNoFileComp
		}
		suggestions, _ := known.Load(resolveKnownPath(o.KnownModulesFile))
		return suggestions, cobra.ShellCompDirectiveNoFileComp
	}
```

- [ ] **Step 4: Update `apps/birdseye/cmd/versions.go`**

Replace the existing function body with:

```go
func newVersionsCmd(g *GlobalFlags) *cobra.Command {
	var knownModulesFile string
	c := &cobra.Command{
		Use:           "versions <module>",
		Short:         "List published versions of a Crow module",
		Args:          cobra.ExactArgs(1),
		SilenceUsage:  true,
		SilenceErrors: true,
		RunE: func(cmd *cobra.Command, args []string) error {
			id, err := parseModuleAddress(args[0])
			if err != nil {
				return err
			}
			cli := client.New(g.CrowURL, client.WithHTTPClient(newHTTPClient(g.Timeout)))
			versions, err := cli.ListVersions(cmd.Context(), id)
			if err != nil {
				return err
			}
			for _, v := range versions {
				fmt.Fprintln(cmd.OutOrStdout(), v)
			}
			return nil
		},
	}
	c.Flags().StringVar(&knownModulesFile, "known-modules-file", "", "override known-modules autocomplete file (mostly for tests)")
	_ = c.Flags().MarkHidden("known-modules-file")
	c.ValidArgsFunction = func(_ *cobra.Command, args []string, _ string) ([]string, cobra.ShellCompDirective) {
		if len(args) > 0 {
			return nil, cobra.ShellCompDirectiveNoFileComp
		}
		suggestions, _ := known.Load(resolveKnownPath(knownModulesFile))
		return suggestions, cobra.ShellCompDirectiveNoFileComp
	}
	return c
}
```

Add `"github.com/immuta/operations/apps/birdseye/internal/known"` to the imports of `versions.go`.

- [ ] **Step 5: Run, expect PASS**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./cmd/... -v`
Expected: All previous + 3 new tests PASS.

- [ ] **Step 6: Verify build**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go vet ./... && go build ./...`
Expected: clean.

- [ ] **Step 7: Commit**

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && git add apps/birdseye/cmd/ && git commit -m "feat(birdseye): shell completion for diff and versions from known-modules cache"
```

## Notes & Style

- The cobra `__complete` pseudo-command is the official testing surface for `ValidArgsFunction`. It writes one suggestion per line followed by a `:N` directive line — `strings.Contains` is enough for test assertions.
- `cobra.ShellCompDirectiveNoFileComp` disables fallback filename completion, so users don't see local files mixed with module addresses.
- The `if len(args) > 0` guard means we only suggest module addresses for the FIRST positional arg. Subsequent args (versions) get no suggestions.
- `versions` reuses `resolveKnownPath` from `diff.go` (same package) — no need to duplicate.
- `versions.go` declares its own local `knownModulesFile` var (not on `diffOpts`) because there's no per-command opts struct for versions; that's fine and idiomatic.

## Code Organization

`diff.go` and `versions.go` each get the small `ValidArgsFunction` addition inline. No new files.

## Self-Review Checklist

- [ ] All 3 new tests pass under `-race`
- [ ] All previous tests still pass
- [ ] `go vet ./...` clean
- [ ] `go build ./...` succeeds
- [ ] `versions` does NOT call `known.Add` anywhere
- [ ] `versions` DOES read the cache via `Load` in its ValidArgsFunction
- [ ] Both subcommands return `ShellCompDirectiveNoFileComp` to suppress filename fallback
- [ ] Commit message exactly: `feat(birdseye): shell completion for diff and versions from known-modules cache`

## Report Format

- **Status:** DONE | DONE_WITH_CONCERNS | BLOCKED | NEEDS_CONTEXT
- Files modified
- Test count + race-clean
- Commit SHA
- Anything unexpected


Combined review Task 4

Prompt:
Combined spec + code-quality review of Task 4 (ValidArgsFunction for diff + versions) in worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

Diff: `git diff 51a2c0e..4d747fc -- apps/birdseye/cmd/`

## Spec — What Was Requested

1. `cmd/diff.go` `newDiffCmd`: add `ValidArgsFunction` that:
   - Returns `nil, ShellCompDirectiveNoFileComp` when `len(args) > 0`
   - Otherwise returns `known.Load(resolveKnownPath(o.KnownModulesFile)), ShellCompDirectiveNoFileComp`

2. `cmd/versions.go` `newVersionsCmd`: add a hidden `--known-modules-file` flag (local `knownModulesFile` var, NOT on a struct) plus the same `ValidArgsFunction`. Import `internal/known`.

3. New tests:
   - `TestDiffValidArgsFunctionLoadsCache` (diff_test.go) — `__complete` pseudo-command, asserts cache entries appear in output
   - `TestVersionsValidArgsFunctionLoadsCache` (versions_test.go) — same shape
   - `TestVersionsDoesNotAddToKnown` (versions_test.go) — runs versions, asserts known-modules file NOT created

Commit message exact: `feat(birdseye): shell completion for diff and versions from known-modules cache`.

## Quality Focus

- `if len(args) > 0` guard correctly suppresses suggestions for non-first positional args (versions on the diff command, etc.)?
- Both functions return `ShellCompDirectiveNoFileComp` to suppress filename fallback?
- `versions` does NOT call `known.Add` anywhere (intentional asymmetry — only reads cache, never writes)?
- `versions`'s local `knownModulesFile` variable is correctly closed over by the ValidArgsFunction (closure capture, not value capture)?
- No test pollution: tests use `t.TempDir()` for the cache file?

## Report Format

**Spec:** ✅ / ❌
**Quality:** Strengths / Issues / Assessment

Be terse.


**Spec: ✅ All 5 items implemented**

1. `diff.go` `ValidArgsFunction` — `len(args) > 0` guard + `known.Load(resolveKnownPath(...))` + `ShellCompDirectiveNoFileComp`. ✅
2. `versions.go` hidden `--known-modules-file` flag on local `knownModulesFile` var (not a struct) + same `ValidArgsFunction` shape + `known` imported. ✅
3. `TestDiffValidArgsFunctionLoadsCache` — `__complete` invocation, asserts both cache entries in output. ✅
4. `TestVersionsValidArgsFunctionLoadsCache` — same shape for versions. ✅
5. `TestVersionsDoesNotAddToKnown` — runs `versions`, asserts known-modules file not created. ✅
6. Commit message matches spec exactly. (Not verifiable from diff, but that's on the committer.)

---

**Quality:**

Strengths:
- Guard `len(args) > 0` is correct — suppresses completion after the first positional arg, which is the right behavior for both commands (each takes exactly one module argument).
- Both functions consistently return `ShellCompDirectiveNoFileComp` in all branches — no filename fallback leaks.
- `versions` never calls `known.Add`; the asymmetry is clean and intentional.
- Closure capture is correct: `knownModulesFile` is a `string` declared in the enclosing function scope, and the closure captures the variable (pointer-to-string), not a snapshot of its value at declaration time. Since it's only mutated by flag parsing (before any completion call), this is safe.
- All three tests use `t.TempDir()` — no test pollution.
- `TestVersionsDoesNotAddToKnown` hits a real HTTP server (via `httptest`) to exercise the full run path, not just a stub — solid coverage of the "no side effect" guarantee.

Issues: None significant. One minor observation: `known.Load` errors are silently discarded (`suggestions, _ := ...`) in both ValidArgsFunctions. This is acceptable for completion — a broken cache should degrade gracefully to no suggestions rather than blocking the shell — but it's worth noting the intentional swallow.

Assessment: Implementation is correct, idiomatic, and well-tested. No rework needed.

agentId: a23ba3e686952e1d0 (use SendMessage with to: 'a23ba3e686952e1d0' to continue this agent)
<usage>total_tokens: 14524
tool_uses: 1
duration_ms: 16769</usage>

Prompt:
Combined spec + code-quality review of Task 4 (ValidArgsFunction for diff + versions) in worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

Diff: `git diff 51a2c0e..4d747fc -- apps/birdseye/cmd/`

## Spec — What Was Requested

1. `cmd/diff.go` `newDiffCmd`: add `ValidArgsFunction` that:
   - Returns `nil, ShellCompDirectiveNoFileComp` when `len(args) > 0`
   - Otherwise returns `known.Load(resolveKnownPath(o.KnownModulesFile)), ShellCompDirectiveNoFileComp`

2. `cmd/versions.go` `newVersionsCmd`: add a hidden `--known-modules-file` flag (local `knownModulesFile` var, NOT on a struct) plus the same `ValidArgsFunction`. Import `internal/known`.

3. New tests:
   - `TestDiffValidArgsFunctionLoadsCache` (diff_test.go) — `__complete` pseudo-command, asserts cache entries appear in output
   - `TestVersionsValidArgsFunctionLoadsCache` (versions_test.go) — same shape
   - `TestVersionsDoesNotAddToKnown` (versions_test.go) — runs versions, asserts known-modules file NOT created

Commit message exact: `feat(birdseye): shell completion for diff and versions from known-modules cache`.

## Quality Focus

- `if len(args) > 0` guard correctly suppresses suggestions for non-first positional args (versions on the diff command, etc.)?
- Both functions return `ShellCompDirectiveNoFileComp` to suppress filename fallback?
- `versions` does NOT call `known.Add` anywhere (intentional asymmetry — only reads cache, never writes)?
- `versions`'s local `knownModulesFile` variable is correctly closed over by the ValidArgsFunction (closure capture, not value capture)?
- No test pollution: tests use `t.TempDir()` for the cache file?

## Report Format

**Spec:** ✅ / ❌
**Quality:** Strengths / Issues / Assessment

Be terse.


Task 4 ate. Moving to Task 5 (picker suggestions + runInteractive wiring).


Updated task #21 status


Implement Task 5: picker suggestions

Prompt:
You are implementing Task 5 of the birdseye known-modules cache implementation plan — the final task. TUI picker suggestions + fire-and-forget cache add + `runInteractive` wiring.

## Working Environment

- **Worktree path:** `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`
- **Git branch:** `worktree-birdseye`
- **HEAD:** `4d747fc` (Task 4: shell completion for diff and versions)
- Use absolute paths or `cd` into the worktree.
- **NEVER push.** **NEVER `git add .` / `git add -A`.**

## Context

`apps/birdseye/internal/tui/picker.go` contains the bubbletea `Picker` model that walks the user through module address → version A → version B → loading → quit (the cmd then runs the Browser separately, two-stage). The `Picker` struct already has a `ctx` field from a previous fix.

Your job:
1. Change `NewPicker` signature to accept `suggestions []string` and `knownPath string` (4 params total).
2. In `NewPicker`, if `suggestions` is non-empty, call `ti.SetSuggestions(suggestions)` and set `ti.ShowSuggestions = true`.
3. Store `knownPath` on the `Picker` struct.
4. In `updateLoading`'s `versionsLoadedMsg` success branch, dispatch a fire-and-forget `addKnownCmd` as a `tea.Cmd`.
5. Update `runInteractive` in `cmd/diff.go` to load suggestions and pass both args.
6. Update existing picker tests for the new signature.
7. Add 3 new tests for the suggestions behavior.

The existing `NewPicker(ctx, deps)` signature appears in three existing tests (`TestPickerStartsAtAskModule`, `TestPickerAdvancesOnEnter`, `TestPickerRejectsBadAddressInline`). Each becomes `NewPicker(ctx, deps, nil, "")`.

## Task Description (Verbatim)

### Task 5: `internal/tui/picker` — suggestions + fire-and-forget Add + wire `runInteractive`

**Files:**
- Modify: `apps/birdseye/internal/tui/picker.go`
- Modify: `apps/birdseye/internal/tui/picker_test.go`
- Modify: `apps/birdseye/cmd/diff.go`

- [ ] **Step 1: Append failing tests** to `apps/birdseye/internal/tui/picker_test.go`:

```go
import (
	// existing: testing, tea
	"context"
)

func TestPickerAcceptsSuggestionsArg(t *testing.T) {
	p := NewPicker(context.Background(), nil, []string{"iac/comply/aws", "platform/networking/aws"}, "")
	if !p.input.ShowSuggestions {
		t.Error("expected ShowSuggestions == true when suggestions provided")
	}
}

func TestPickerNoSuggestionsLeavesShowSuggestionsFalse(t *testing.T) {
	p := NewPicker(context.Background(), nil, nil, "")
	if p.input.ShowSuggestions {
		t.Error("expected ShowSuggestions == false when suggestions are nil/empty")
	}
}

func TestPickerEmptySuggestionsLeavesShowSuggestionsFalse(t *testing.T) {
	p := NewPicker(context.Background(), nil, []string{}, "")
	if p.input.ShowSuggestions {
		t.Error("expected ShowSuggestions == false when suggestions slice is empty")
	}
}
```

Merge `context` import if not already present.

- [ ] **Step 2: Update existing picker tests** in `apps/birdseye/internal/tui/picker_test.go`

Find every existing `NewPicker(context.Background(), nil)` call and replace with `NewPicker(context.Background(), nil, nil, "")`. There are exactly three such calls:

- `TestPickerStartsAtAskModule`
- `TestPickerAdvancesOnEnter`
- `TestPickerRejectsBadAddressInline`

Each becomes `p := NewPicker(context.Background(), nil, nil, "")`.

- [ ] **Step 3: Run, expect FAIL** (`NewPicker` signature mismatch)

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test ./internal/tui/... -run TestPicker -v`

- [ ] **Step 4: Update `apps/birdseye/internal/tui/picker.go`**

Add a `knownPath string` field to the `Picker` struct. Locate the existing `type Picker struct { ... }` block and append the field.

Change `NewPicker` signature and body:

```go
func NewPicker(ctx context.Context, deps *Deps, suggestions []string, knownPath string) *Picker {
	ti := textinput.New()
	ti.Placeholder = "namespace/name/provider"
	ti.Focus()
	if len(suggestions) > 0 {
		ti.SetSuggestions(suggestions)
		ti.ShowSuggestions = true
	}
	sp := spinner.New()
	sp.Spinner = spinner.Dot
	return &Picker{
		ctx:       ctx,
		deps:      deps,
		state:     StateAskModule,
		input:     ti,
		spinner:   sp,
		knownPath: knownPath,
	}
}
```

Add the import for `known`:

```go
"github.com/immuta/operations/apps/birdseye/internal/known"
```

In `updateLoading`, locate the `versionsLoadedMsg` branch. After populating the versions list and transitioning to `StateAskVersionA`, return the fire-and-forget cmd. The new branch should look like:

```go
	case versionsLoadedMsg:
		if m.err != nil {
			p.errMessage = m.err.Error()
			p.state = StateError
			return p, nil
		}
		items := make([]list.Item, 0, len(m.versions))
		for _, v := range m.versions {
			items = append(items, versionItem(v))
		}
		p.versionsA = list.New(items, list.NewDefaultDelegate(), p.width, p.height-4)
		p.versionsA.Title = "Select version A"
		p.state = StateAskVersionA
		return p, addKnownCmd(p.knownPath, p.moduleID)
```

(The only change is `return p, nil` → `return p, addKnownCmd(p.knownPath, p.moduleID)`.)

Add `addKnownCmd` at file scope (below the existing `loadPairCmd` function):

```go
// addKnownCmd dispatches a fire-and-forget known.Add. The returned
// tea.Msg is nil — bubbletea ignores nil messages cleanly. Errors are
// swallowed (best-effort cache update).
func addKnownCmd(path string, id api.ModuleIdentifier) tea.Cmd {
	if path == "" {
		return nil
	}
	addr := id.Namespace + "/" + id.Name + "/" + id.Provider
	return func() tea.Msg {
		_ = known.Add(path, addr)
		return nil
	}
}
```

- [ ] **Step 5: Update `runInteractive` in `apps/birdseye/cmd/diff.go`**

Locate the `tui.NewPicker(...)` call. Replace it:

Before:
```go
	p := tui.NewPicker(ctx, &tui.Deps{Client: cli, Reg: reg})
```

After:
```go
	knownPath := resolveKnownPath(o.KnownModulesFile)
	suggestions, _ := known.Load(knownPath)
	p := tui.NewPicker(ctx, &tui.Deps{Client: cli, Reg: reg}, suggestions, knownPath)
```

- [ ] **Step 6: Run all tests, expect PASS**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./... -v`
Expected: all PASS — existing picker tests updated to new signature + 3 new picker tests + all other packages still green.

- [ ] **Step 7: Verify build**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go vet ./... && go build ./...`
Expected: clean.

- [ ] **Step 8: Commit**

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && git add apps/birdseye/internal/tui/ apps/birdseye/cmd/diff.go && git commit -m "feat(birdseye): TUI textinput suggestions and best-effort cache from interactive picker"
```

If go.sum changed, include it.

## Notes & Style

- `bubbles/textinput.SetSuggestions([]string)` and `ShowSuggestions bool` are available in v0.21.0+ (the version in go.mod). If for some reason the API differs, the closest alternative is `ti.SetSuggestions(suggestions)` and `ti.ShowSuggestions = true` — these are the documented fields.
- `addKnownCmd` returns `nil` cmd when path is empty (early-return), avoiding wasted goroutines.
- The returned `tea.Msg` is `nil` — bubbletea explicitly handles nil messages as no-ops.
- The `_ = known.Add(...)` swallow is intentional: best-effort. The user has already typed an address that resolved successfully; whether we persist it is a nicety.
- After Step 5, `runInteractive` in `cmd/diff.go` already has access to `o.KnownModulesFile` (added in Task 3) and `resolveKnownPath` (also Task 3), AND `known` is already imported there (also Task 3). No new imports needed in `diff.go`.

## Self-Review Checklist

- [ ] All TUI tests pass under `-race` (existing + 3 new)
- [ ] All previous cmd tests still pass
- [ ] `go vet ./...` clean
- [ ] `go build ./...` succeeds
- [ ] `NewPicker` signature is `(ctx context.Context, deps *Deps, suggestions []string, knownPath string)` — exactly 4 params
- [ ] `Picker` struct has a new `knownPath string` field
- [ ] `addKnownCmd("", ...)` returns nil tea.Cmd (early-return)
- [ ] `runInteractive` loads suggestions via `known.Load` and passes both `suggestions` and `knownPath`
- [ ] Commit message exactly: `feat(birdseye): TUI textinput suggestions and best-effort cache from interactive picker`

## Report Format

- **Status:** DONE | DONE_WITH_CONCERNS | BLOCKED | NEEDS_CONTEXT
- Files modified
- Test count + race-clean
- Confirmation of NewPicker signature
- Commit SHA
- Anything unexpected


---

**Status:** DONE

**Files modified:**
- `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/internal/tui/picker.go`
- `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/internal/tui/picker_test.go`
- `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/diff.go`

**Test count + race-clean:** 6 picker tests (3 existing updated, 3 new added), all packages passing — 0 race conditions detected.

**NewPicker signature confirmed:** `func NewPicker(ctx context.Context, deps *Deps, suggestions []string, knownPath string) *Picker`

**Key implementation details:**
- `Picker` struct has the new `knownPath string` field
- `addKnownCmd("", ...)` returns `nil` immediately (early-return guard on empty path)
- `versionsLoadedMsg` success branch now returns `addKnownCmd(p.knownPath, p.moduleID)` instead of `nil`
- `runInteractive` loads suggestions via `known.Load(knownPath)` and passes both to `NewPicker`
- `go.sum` had no changes (no new dependencies)

**Commit SHA:** `4f53099`

agentId: ad224034b5e82e703 (use SendMessage with to: 'ad224034b5e82e703' to continue this agent)
<usage>total_tokens: 30521
tool_uses: 15
duration_ms: 99170</usage>

Prompt:
You are implementing Task 5 of the birdseye known-modules cache implementation plan — the final task. TUI picker suggestions + fire-and-forget cache add + `runInteractive` wiring.

## Working Environment

- **Worktree path:** `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`
- **Git branch:** `worktree-birdseye`
- **HEAD:** `4d747fc` (Task 4: shell completion for diff and versions)
- Use absolute paths or `cd` into the worktree.
- **NEVER push.** **NEVER `git add .` / `git add -A`.**

## Context

`apps/birdseye/internal/tui/picker.go` contains the bubbletea `Picker` model that walks the user through module address → version A → version B → loading → quit (the cmd then runs the Browser separately, two-stage). The `Picker` struct already has a `ctx` field from a previous fix.

Your job:
1. Change `NewPicker` signature to accept `suggestions []string` and `knownPath string` (4 params total).
2. In `NewPicker`, if `suggestions` is non-empty, call `ti.SetSuggestions(suggestions)` and set `ti.ShowSuggestions = true`.
3. Store `knownPath` on the `Picker` struct.
4. In `updateLoading`'s `versionsLoadedMsg` success branch, dispatch a fire-and-forget `addKnownCmd` as a `tea.Cmd`.
5. Update `runInteractive` in `cmd/diff.go` to load suggestions and pass both args.
6. Update existing picker tests for the new signature.
7. Add 3 new tests for the suggestions behavior.

The existing `NewPicker(ctx, deps)` signature appears in three existing tests (`TestPickerStartsAtAskModule`, `TestPickerAdvancesOnEnter`, `TestPickerRejectsBadAddressInline`). Each becomes `NewPicker(ctx, deps, nil, "")`.

## Task Description (Verbatim)

### Task 5: `internal/tui/picker` — suggestions + fire-and-forget Add + wire `runInteractive`

**Files:**
- Modify: `apps/birdseye/internal/tui/picker.go`
- Modify: `apps/birdseye/internal/tui/picker_test.go`
- Modify: `apps/birdseye/cmd/diff.go`

- [ ] **Step 1: Append failing tests** to `apps/birdseye/internal/tui/picker_test.go`:

```go
import (
	// existing: testing, tea
	"context"
)

func TestPickerAcceptsSuggestionsArg(t *testing.T) {
	p := NewPicker(context.Background(), nil, []string{"iac/comply/aws", "platform/networking/aws"}, "")
	if !p.input.ShowSuggestions {
		t.Error("expected ShowSuggestions == true when suggestions provided")
	}
}

func TestPickerNoSuggestionsLeavesShowSuggestionsFalse(t *testing.T) {
	p := NewPicker(context.Background(), nil, nil, "")
	if p.input.ShowSuggestions {
		t.Error("expected ShowSuggestions == false when suggestions are nil/empty")
	}
}

func TestPickerEmptySuggestionsLeavesShowSuggestionsFalse(t *testing.T) {
	p := NewPicker(context.Background(), nil, []string{}, "")
	if p.input.ShowSuggestions {
		t.Error("expected ShowSuggestions == false when suggestions slice is empty")
	}
}
```

Merge `context` import if not already present.

- [ ] **Step 2: Update existing picker tests** in `apps/birdseye/internal/tui/picker_test.go`

Find every existing `NewPicker(context.Background(), nil)` call and replace with `NewPicker(context.Background(), nil, nil, "")`. There are exactly three such calls:

- `TestPickerStartsAtAskModule`
- `TestPickerAdvancesOnEnter`
- `TestPickerRejectsBadAddressInline`

Each becomes `p := NewPicker(context.Background(), nil, nil, "")`.

- [ ] **Step 3: Run, expect FAIL** (`NewPicker` signature mismatch)

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test ./internal/tui/... -run TestPicker -v`

- [ ] **Step 4: Update `apps/birdseye/internal/tui/picker.go`**

Add a `knownPath string` field to the `Picker` struct. Locate the existing `type Picker struct { ... }` block and append the field.

Change `NewPicker` signature and body:

```go
func NewPicker(ctx context.Context, deps *Deps, suggestions []string, knownPath string) *Picker {
	ti := textinput.New()
	ti.Placeholder = "namespace/name/provider"
	ti.Focus()
	if len(suggestions) > 0 {
		ti.SetSuggestions(suggestions)
		ti.ShowSuggestions = true
	}
	sp := spinner.New()
	sp.Spinner = spinner.Dot
	return &Picker{
		ctx:       ctx,
		deps:      deps,
		state:     StateAskModule,
		input:     ti,
		spinner:   sp,
		knownPath: knownPath,
	}
}
```

Add the import for `known`:

```go
"github.com/immuta/operations/apps/birdseye/internal/known"
```

In `updateLoading`, locate the `versionsLoadedMsg` branch. After populating the versions list and transitioning to `StateAskVersionA`, return the fire-and-forget cmd. The new branch should look like:

```go
	case versionsLoadedMsg:
		if m.err != nil {
			p.errMessage = m.err.Error()
			p.state = StateError
			return p, nil
		}
		items := make([]list.Item, 0, len(m.versions))
		for _, v := range m.versions {
			items = append(items, versionItem(v))
		}
		p.versionsA = list.New(items, list.NewDefaultDelegate(), p.width, p.height-4)
		p.versionsA.Title = "Select version A"
		p.state = StateAskVersionA
		return p, addKnownCmd(p.knownPath, p.moduleID)
```

(The only change is `return p, nil` → `return p, addKnownCmd(p.knownPath, p.moduleID)`.)

Add `addKnownCmd` at file scope (below the existing `loadPairCmd` function):

```go
// addKnownCmd dispatches a fire-and-forget known.Add. The returned
// tea.Msg is nil — bubbletea ignores nil messages cleanly. Errors are
// swallowed (best-effort cache update).
func addKnownCmd(path string, id api.ModuleIdentifier) tea.Cmd {
	if path == "" {
		return nil
	}
	addr := id.Namespace + "/" + id.Name + "/" + id.Provider
	return func() tea.Msg {
		_ = known.Add(path, addr)
		return nil
	}
}
```

- [ ] **Step 5: Update `runInteractive` in `apps/birdseye/cmd/diff.go`**

Locate the `tui.NewPicker(...)` call. Replace it:

Before:
```go
	p := tui.NewPicker(ctx, &tui.Deps{Client: cli, Reg: reg})
```

After:
```go
	knownPath := resolveKnownPath(o.KnownModulesFile)
	suggestions, _ := known.Load(knownPath)
	p := tui.NewPicker(ctx, &tui.Deps{Client: cli, Reg: reg}, suggestions, knownPath)
```

- [ ] **Step 6: Run all tests, expect PASS**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./... -v`
Expected: all PASS — existing picker tests updated to new signature + 3 new picker tests + all other packages still green.

- [ ] **Step 7: Verify build**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go vet ./... && go build ./...`
Expected: clean.

- [ ] **Step 8: Commit**

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && git add apps/birdseye/internal/tui/ apps/birdseye/cmd/diff.go && git commit -m "feat(birdseye): TUI textinput suggestions and best-effort cache from interactive picker"
```

If go.sum changed, include it.

## Notes & Style

- `bubbles/textinput.SetSuggestions([]string)` and `ShowSuggestions bool` are available in v0.21.0+ (the version in go.mod). If for some reason the API differs, the closest alternative is `ti.SetSuggestions(suggestions)` and `ti.ShowSuggestions = true` — these are the documented fields.
- `addKnownCmd` returns `nil` cmd when path is empty (early-return), avoiding wasted goroutines.
- The returned `tea.Msg` is `nil` — bubbletea explicitly handles nil messages as no-ops.
- The `_ = known.Add(...)` swallow is intentional: best-effort. The user has already typed an address that resolved successfully; whether we persist it is a nicety.
- After Step 5, `runInteractive` in `cmd/diff.go` already has access to `o.KnownModulesFile` (added in Task 3) and `resolveKnownPath` (also Task 3), AND `known` is already imported there (also Task 3). No new imports needed in `diff.go`.

## Self-Review Checklist

- [ ] All TUI tests pass under `-race` (existing + 3 new)
- [ ] All previous cmd tests still pass
- [ ] `go vet ./...` clean
- [ ] `go build ./...` succeeds
- [ ] `NewPicker` signature is `(ctx context.Context, deps *Deps, suggestions []string, knownPath string)` — exactly 4 params
- [ ] `Picker` struct has a new `knownPath string` field
- [ ] `addKnownCmd("", ...)` returns nil tea.Cmd (early-return)
- [ ] `runInteractive` loads suggestions via `known.Load` and passes both `suggestions` and `knownPath`
- [ ] Commit message exactly: `feat(birdseye): TUI textinput suggestions and best-effort cache from interactive picker`

## Report Format

- **Status:** DONE | DONE_WITH_CONCERNS | BLOCKED | NEEDS_CONTEXT
- Files modified
- Test count + race-clean
- Confirmation of NewPicker signature
- Commit SHA
- Anything unexpected


Combined review Task 5

Prompt:
Combined spec + code-quality review of Task 5 (picker suggestions + addKnownCmd + runInteractive wiring) in worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

Diff: `git diff 4d747fc..4f53099 -- apps/birdseye/`

## Spec — What Was Requested

1. `internal/tui/picker.go`:
   - `Picker` struct gains `knownPath string` field
   - `NewPicker(ctx, deps, suggestions []string, knownPath string) *Picker` — 4 params
   - If `len(suggestions) > 0`, call `ti.SetSuggestions(suggestions)` and `ti.ShowSuggestions = true`
   - In `updateLoading` `versionsLoadedMsg` success branch: return `addKnownCmd(p.knownPath, p.moduleID)` instead of `nil`
   - New helper `addKnownCmd(path string, id api.ModuleIdentifier) tea.Cmd`:
     - Returns `nil` cmd if `path == ""`
     - Otherwise returns a closure that calls `known.Add(path, addr)` and returns nil msg

2. `internal/tui/picker_test.go`:
   - Three existing `NewPicker(ctx, nil)` calls updated to `NewPicker(ctx, nil, nil, "")`
   - Three new tests: `TestPickerAcceptsSuggestionsArg`, `TestPickerNoSuggestionsLeavesShowSuggestionsFalse`, `TestPickerEmptySuggestionsLeavesShowSuggestionsFalse`

3. `cmd/diff.go` `runInteractive`:
   - Replace `p := tui.NewPicker(ctx, &tui.Deps{...})` with:
     ```go
     knownPath := resolveKnownPath(o.KnownModulesFile)
     suggestions, _ := known.Load(knownPath)
     p := tui.NewPicker(ctx, &tui.Deps{...}, suggestions, knownPath)
     ```

Commit message exact: `feat(birdseye): TUI textinput suggestions and best-effort cache from interactive picker`.

## Quality Focus

- Empty-suggestions case: `nil` slice and `[]string{}` both produce `ShowSuggestions == false`?
- `addKnownCmd("", ...)` returns nil → no wasted goroutine?
- Fire-and-forget closure correctly returns `nil` tea.Msg?
- `runInteractive` only calls `known.Load` once at startup (not per-keystroke)?
- The change to `versionsLoadedMsg` success branch ONLY affects success (the err case is untouched and still returns `nil` cmd)?
- Picker tests don't depend on real network/filesystem?

## Report Format

**Spec:** ✅ / ❌
**Quality:** Strengths / Issues / Assessment

Be terse.


All the information I need is in. Here's the review:

---

**Spec: ✅ All 3 files implemented correctly**

| Item | Status |
|---|---|
| `Picker.knownPath string` field | ✅ |
| `NewPicker` signature (4 params) | ✅ |
| `SetSuggestions` + `ShowSuggestions = true` when `len > 0` | ✅ |
| `versionsLoadedMsg` success branch returns `addKnownCmd(...)` | ✅ |
| `addKnownCmd` helper implemented | ✅ |
| 3 existing test call sites updated to 4-param form | ✅ |
| 3 new tests added | ✅ |
| `runInteractive` wiring: `resolveKnownPath` + `known.Load` + 4-param `NewPicker` | ✅ |
| Commit message (exact) | Not verifiable from diff, but implementation matches the feat scope |

---

**Quality**

**Strengths:**
- `addKnownCmd("")` fast-paths to `return nil` — no goroutine spawned, no wasted allocation.
- The closure correctly returns `nil` (untyped nil) as the `tea.Msg`; bubbletea skips nil messages without panicking.
- `versionsLoadedMsg` error branch at line 167 is untouched — still returns `nil` cmd. The `addKnownCmd` call is placed exclusively in the success path (line 177), which is correct.
- `known.Load` returns `([]string, error)`. The `suggestions, _ = known.Load(knownPath)` assignment is type-safe; a nil/empty slice propagates cleanly through `len(suggestions) > 0`.
- `known.Load` is called once at startup in `runInteractive`, not in any Update loop — no per-keystroke I/O.
- All three new picker tests use only in-process state (no filesystem, no network). They directly inspect `p.input.ShowSuggestions`, which is an exported field on the `textinput.Model` — straightforward and reliable.
- `TestPickerEmptySuggestionsLeavesShowSuggestionsFalse` uses `[]string{}` (non-nil empty), confirming the `len > 0` guard covers both the nil and empty cases.

**Issues:** None. The implementation is clean.

**Assessment:** Correct, minimal, and well-tested. The fire-and-forget pattern is handled properly. No spec gaps, no quality concerns worth raising.

agentId: a0b8462a54195c6a4 (use SendMessage with to: 'a0b8462a54195c6a4' to continue this agent)
<usage>total_tokens: 15915
tool_uses: 5
duration_ms: 46319</usage>

Prompt:
Combined spec + code-quality review of Task 5 (picker suggestions + addKnownCmd + runInteractive wiring) in worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

Diff: `git diff 4d747fc..4f53099 -- apps/birdseye/`

## Spec — What Was Requested

1. `internal/tui/picker.go`:
   - `Picker` struct gains `knownPath string` field
   - `NewPicker(ctx, deps, suggestions []string, knownPath string) *Picker` — 4 params
   - If `len(suggestions) > 0`, call `ti.SetSuggestions(suggestions)` and `ti.ShowSuggestions = true`
   - In `updateLoading` `versionsLoadedMsg` success branch: return `addKnownCmd(p.knownPath, p.moduleID)` instead of `nil`
   - New helper `addKnownCmd(path string, id api.ModuleIdentifier) tea.Cmd`:
     - Returns `nil` cmd if `path == ""`
     - Otherwise returns a closure that calls `known.Add(path, addr)` and returns nil msg

2. `internal/tui/picker_test.go`:
   - Three existing `NewPicker(ctx, nil)` calls updated to `NewPicker(ctx, nil, nil, "")`
   - Three new tests: `TestPickerAcceptsSuggestionsArg`, `TestPickerNoSuggestionsLeavesShowSuggestionsFalse`, `TestPickerEmptySuggestionsLeavesShowSuggestionsFalse`

3. `cmd/diff.go` `runInteractive`:
   - Replace `p := tui.NewPicker(ctx, &tui.Deps{...})` with:
     ```go
     knownPath := resolveKnownPath(o.KnownModulesFile)
     suggestions, _ := known.Load(knownPath)
     p := tui.NewPicker(ctx, &tui.Deps{...}, suggestions, knownPath)
     ```

Commit message exact: `feat(birdseye): TUI textinput suggestions and best-effort cache from interactive picker`.

## Quality Focus

- Empty-suggestions case: `nil` slice and `[]string{}` both produce `ShowSuggestions == false`?
- `addKnownCmd("", ...)` returns nil → no wasted goroutine?
- Fire-and-forget closure correctly returns `nil` tea.Msg?
- `runInteractive` only calls `known.Load` once at startup (not per-keystroke)?
- The change to `versionsLoadedMsg` success branch ONLY affects success (the err case is untouched and still returns `nil` cmd)?
- Picker tests don't depend on real network/filesystem?

## Report Format

**Spec:** ✅ / ❌
**Quality:** Strengths / Issues / Assessment

Be terse.


Task 5 ate. All 5 implementation tasks complete. Now the final whole-branch review with Opus.


Updated task #22 status


Bash

git log --oneline 474d56d..HEAD && echo "---" && git diff 474d56d..HEAD --stat | tail -15

Confirm feature scope


4f53099 feat(birdseye): TUI textinput suggestions and best-effort cache from interactive picker
4d747fc feat(birdseye): shell completion for diff and versions from known-modules cache
51a2c0e feat(birdseye): cache module address after successful CLI diff
171c32a test(birdseye): harden known-modules cache (dedup, sort, atomic, validation)
32e305b feat(birdseye): known-modules autocomplete cache with Path/Load/Add
---
 apps/birdseye/cmd/diff.go                  |  39 +++++-
 apps/birdseye/cmd/diff_test.go             |  77 ++++++++++++
 apps/birdseye/cmd/versions.go              |  14 ++-
 apps/birdseye/cmd/versions_test.go         |  46 +++++++
 apps/birdseye/internal/known/known.go      | 152 +++++++++++++++++++++++
 apps/birdseye/internal/known/known_test.go | 186 +++++++++++++++++++++++++++++
 apps/birdseye/internal/tui/picker.go       |  39 ++++--
 apps/birdseye/internal/tui/picker_test.go  |  27 ++++-
 8 files changed, 564 insertions(+), 16 deletions(-)


Agent

Final review: known-modules feature

Prompt:
You are doing a FINAL whole-feature code review on the birdseye known-modules autocomplete cache feature in worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

Per-task reviews already happened; your job is the holistic view — cross-cutting concerns, integration coherence, things visible only when seeing the whole picture.

## Feature Scope

```
BASE_SHA: 474d56d (prior whole-branch state)
HEAD_SHA: 4f53099 (this feature complete)
```

5 commits, 564 LOC added across 8 files:

```
32e305b feat(birdseye): known-modules autocomplete cache with Path/Load/Add
171c32a test(birdseye): harden known-modules cache (dedup, sort, atomic, validation)
51a2c0e feat(birdseye): cache module address after successful CLI diff
4d747fc feat(birdseye): shell completion for diff and versions from known-modules cache
4f53099 feat(birdseye): TUI textinput suggestions and best-effort cache from interactive picker
```

## Spec & Plan

- Spec: `docs/superpowers/specs/2026-05-13-birdseye-known-modules-design.md`
- Plan: `docs/superpowers/plans/2026-05-13-birdseye-known-modules.md`

## Feature Architecture Recap

New `internal/known` package persists module addresses the user has successfully diff'd or browsed in `os.UserConfigDir()/birdseye/known-modules` (plain text, sorted, atomic writes). Two consumption surfaces share that cache:

1. Cobra shell completion (`ValidArgsFunction`) on both `diff` and `versions` subcommands
2. `bubbles/textinput.SetSuggestions` in the interactive TUI picker

Two write triggers (per spec, intentionally):
- After successful positional CLI `diff` (in `runDiff` after diff is built, before render)
- After picker's `ListVersions` returns successfully (fire-and-forget via `addKnownCmd`)

The `versions` subcommand intentionally does NOT write — it only reads for completion.

## Review Focus — Cross-cutting Only

You are NOT re-reviewing individual tasks. Focus on:

1. **Integration coherence**: does the `cmd → internal/known → internal/tui` graph make sense? Any unexpected cross-package deps? Does `internal/known` stay pure (no logging, no CLI)?

2. **End-to-end correctness scenarios**:
   - User runs `birdseye diff ns/n/p vA vB` → on success, file contains `ns/n/p` (sorted, deduped)
   - User runs `birdseye diff <TAB>` after at least one successful diff → completion shows the cached address
   - User runs `birdseye diff` (interactive) → textinput shows ghost suggestion of cached address
   - User runs `birdseye versions ns/n/p` → no file written, but `versions <TAB>` reads the file
   - Two parallel diffs writing simultaneously → last writer wins, no corruption (documented behavior)
   - First-run (file doesn't exist) → everything works, completion returns no suggestions

3. **Failure modes**:
   - `os.UserConfigDir()` fails → `Path()` errors → `resolveKnownPath` returns "" → `Load("")` returns error which Load swallows to nil suggestions; `Add("")` errors which the caller swallows. No crash, no temp file leak (verified: `os.Open("")` fails before any temp creation).
   - Failed diff (404, network) → no cache write (verified by test)
   - Failed render (writer closed) → cache already written (correct behavior — diff conceptually succeeded)
   - Bad address slips into file (manual edit) → `Load` silently skips via `validAddress`

4. **Resource hygiene**:
   - Atomic temp+rename pattern in `Add` — temp cleanup on every error branch?
   - `Picker.addKnownCmd("", ...)` returns nil → no wasted goroutine?
   - `Load` defers Close + checks Scanner.Err()?

5. **Test independence**:
   - Every test uses `t.TempDir()` for the cache file — no host-config pollution?
   - The default `Path()` is never actually written to by any test (assert by running tests and checking that no `~/.config/birdseye/known-modules` file is created or modified)?

6. **Style/idiom consistency with the rest of the birdseye codebase**:
   - Error wrapping style (`fmt.Errorf("x: %w", err)`)?
   - `_ = err` swallow pattern matches the registry/cache pattern?
   - Tests use stdlib `testing` only (no testify)?
   - Hidden flag pattern matches sibling apps?

7. **Build sanity**:
   - `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go build ./... && go test -race ./... && go vet ./...` → all clean
   - The `services/crow/pkg/client` tests still pass (we didn't touch them — confirm via `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/services/crow && go test -race ./pkg/client/...`)

8. **Smoke test the new flags**:
   - `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && make build && ./bin/birdseye diff --help` — assert `--known-modules-file` is NOT shown (hidden flag)
   - `./bin/birdseye versions --help` — same (hidden)
   - Run a completion: `./bin/birdseye __complete diff ""` → should produce no error and either zero or "no suggestions" output

9. **Spec coverage**: walk the spec sections and confirm every requirement maps to a task. List any unaddressed requirements.

10. **Things that could break unrelated tests**: any change that might affect prior birdseye behavior (e.g., a subtle change to `parseModuleAddress`, an export that shadows existing identifiers)?

## Report Format

Lead with overall assessment. Then sections:

**Overall:** READY TO MERGE | NEEDS_FIXES_BEFORE_MERGE

**Integration coherence:**
**End-to-end correctness:**
**Failure modes:**
**Resource hygiene:**
**Test independence:**
**Style consistency:**
**Build sanity:**
**Smoke output:**
**Spec coverage:**

**Critical / Important / Minor issues** (only if any).

Be thorough but terse. This is the merge gate for this feature.


`_ = err` inside the body is a no-op since `err` was already known to be non-nil — this is technically the documented swallow pattern. The block could be `_ = known.Add(...)` more cleanly, but this matches the established convention. Acceptable.

Now I have enough information. Let me compose the report.

---

**Overall:** NEEDS_FIXES_BEFORE_MERGE

There is one real and reproducible defect: several `cmd/diff` success-path tests omit `--known-modules-file` and therefore write to the host's real `~/Library/Application Support/birdseye/known-modules`. This breaks the spec's stated hermeticity invariant ("the host's real `~/.config/birdseye/known-modules` is never touched") and creates host-side state visible across test runs. The rest of the feature is solid.

**Integration coherence:**
- Dependency graph `cmd → internal/known` and `internal/tui → internal/known` is clean. No cycles.
- `internal/known` stays pure: it imports only stdlib + `services/crow/pkg/api` (for `ValidateSegments`). No logging, no cobra, no tea — good.
- Path resolution is centralized in `cmd.resolveKnownPath` (single source for "where do we read/write"). TUI receives the resolved path from cmd, which is the correct seam.
- The picker's helper `parseModuleAddressForPicker` is a small intentional duplication of `cmd.parseModuleAddress` to avoid a cycle — already commented as such; acceptable.

**End-to-end correctness:**
- Positional CLI diff success path writes the file — verified by `TestDiffAddsToKnownAfterSuccess`.
- `diff <TAB>` completion reads file — verified by `TestDiffValidArgsFunctionLoadsCache` (and confirmed by smoke `./bin/birdseye __complete diff ""`).
- `versions <TAB>` reads but never writes — verified by `TestVersionsValidArgsFunctionLoadsCache` + `TestVersionsDoesNotAddToKnown`.
- First-run / missing-file path returns nil suggestions — covered by `TestLoadMissingFileReturnsEmpty`.
- The "Add before render" placement means a failed render still keeps the cache write (matches spec).

**Failure modes:**
- 404 / fetch failure does not write — `TestDiffDoesNotAddOnFailure` verified.
- `os.UserConfigDir()` failure → `Path()` errors → `resolveKnownPath` returns `""` → `os.Open("")` fails with non-IsNotExist (ENOENT path "" varies by OS, but `os.IsNotExist` returns true on darwin/linux for empty path), so Load returns nil/nil and Add returns "create temp" error which the caller swallows. No crash. Verified by code inspection — `os.CreateTemp` is called with `filepath.Dir("") == "."`, so on the worst case it would create a temp in CWD; however, `os.MkdirAll(filepath.Dir(""), 0o755)` is `os.MkdirAll(".", 0o755)` which is a no-op success, then `existing, err := Load("")` returns nil/nil (os.Open("") → ENOENT → IsNotExist), then `os.CreateTemp(".", ".known-modules-*.tmp")` would actually succeed in CWD and `os.Rename(tmpName, "")` would fail. So a stray temp file could land in CWD if `Path()` fails. Minor edge case; not realistic on darwin/linux where UserConfigDir essentially never fails.
- Manual malformed file entries skipped by `validAddress` — covered by `TestLoadSkipsMalformedLines`.

**Resource hygiene:**
- `Add` cleans up the temp file on every error branch (write/flush/close/rename failures all call `os.Remove(tmpName)`).
- `Load` uses `defer f.Close()` and checks `scanner.Err()`.
- `addKnownCmd` returns nil tea.Cmd when path is empty — no goroutine spawned. Good.
- The picker `addKnownCmd` returns `nil` tea.Msg which bubbletea handles cleanly.

**Test independence:**
- All tests inside `internal/known` use `t.TempDir()` — clean.
- `TestDiffAddsToKnownAfterSuccess`, `TestDiffDoesNotAddOnFailure`, `TestDiffValidArgsFunctionLoadsCache`, `TestVersionsDoesNotAddToKnown`, `TestVersionsValidArgsFunctionLoadsCache` correctly inject `--known-modules-file`.
- **DEFECT:** `TestDiffPlainOutput`, `TestDiffIdenticalVersionsNoChanges`, `TestDiffJSONOutput`, `TestDiffSemanticIncluded` in `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/diff_test.go` do NOT pass `--known-modules-file`. They invoke a successful `birdseye diff iac/comply/aws 1.0.0 1.1.0 ...`, so `runDiff` reaches `known.Add(resolveKnownPath(""), "iac/comply/aws")` → resolves to `known.Path()` → real `~/Library/Application Support/birdseye/known-modules` (macOS) or `~/.config/birdseye/known-modules` (linux). Reproduced by hand: starting with the dir deleted, running just `go test -run TestDiffPlainOutput ./cmd/...` recreates `~/Library/Application Support/birdseye/known-modules` containing `iac/comply/aws`. This violates the spec's "Hermetic in tests" invariant explicitly stated in the spec's Goals section and again in the Testing strategy section ("the real `~/.config/birdseye/` is never touched").

**Style consistency:**
- Error wrapping uses `fmt.Errorf("…: %w", err)` — matches the rest of birdseye.
- Tests use stdlib `testing` only — no testify (consistent).
- Hidden flag pattern (`MarkHidden("known-modules-file")`) is duplicated literally between diff.go and versions.go. A small `addKnownModulesFlag(c, &v)` helper would DRY this up, but it's only two call sites; acceptable.
- `_ = err // best-effort` inside the if-body in diff.go (line 156) is technically redundant (err is already known non-nil and unused); `_ = known.Add(...)` at the call site is the more idiomatic swallow. Minor style nit; not blocking.
- `parseModuleAddressForPicker` mirrors `cmd.parseModuleAddress` minus the `ErrUsage` wrapping — duplication is intentional and commented.

**Build sanity:**
- `go build ./...` — clean.
- `go vet ./...` — clean.
- `go test -race ./...` — all pass (in `apps/birdseye`: cmd, archive, diff, known, registry, tui — all OK).
- `services/crow/pkg/client` tests — pass (cached, no touched code).

**Smoke output:**
- `./bin/birdseye diff --help` — `--known-modules-file` correctly hidden.
- `./bin/birdseye versions --help` — `--known-modules-file` correctly hidden.
- `./bin/birdseye __complete diff ""` — runs cleanly, returns the suggestion list plus directive `ShellCompDirectiveNoFileComp`.
- `./bin/birdseye __complete versions ""` — same.

**Spec coverage:**
Every requirement in the spec maps to an implemented task:
- `internal/known` Path/Load/Add atomic writes, dedup, sort, validation — Tasks 1+2.
- Hidden `--known-modules-file` flag on diff + versions — Tasks 3+4.
- Post-success Add from CLI diff (positional path only) — Task 3.
- Versions never writes — Task 4.
- Failed-diff never writes — Task 3 test.
- ValidArgsFunction on diff + versions — Task 4.
- TUI SetSuggestions / ShowSuggestions — Task 5.
- Fire-and-forget addKnownCmd from picker `versionsLoadedMsg` — Task 5.
- `runInteractive` preloads suggestions — Task 5.
The only spec promise NOT met is the testing-strategy invariant about hermetic tests (see Critical issue below).

**Things that could break unrelated tests:**
- `parseModuleAddress` unchanged.
- No exported symbol renames or shadowing.
- New `internal/known` package adds one new import edge into the crow `api` package, which was already imported by cmd/tui; no risk.

---

## Critical issues

1. **Test hermeticity violation** — `apps/birdseye/cmd/diff_test.go` at lines 65, 89, 123, 153: `TestDiffPlainOutput`, `TestDiffIdenticalVersionsNoChanges`, `TestDiffJSONOutput`, `TestDiffSemanticIncluded` all execute a successful `birdseye diff` without `--known-modules-file`, causing `runDiff` to write to the user's real `~/Library/Application Support/birdseye/known-modules` (or `~/.config/birdseye/...` on linux). The spec explicitly requires "the host's real `~/.config/birdseye/` is never touched." Confirmed by reproducing: deleting the real dir, running `go test -run TestDiffPlainOutput ./cmd/...`, then observing the file was recreated. Fix: add `"--known-modules-file", filepath.Join(t.TempDir(), "known-modules")` to each of the four test's `SetArgs` slices (they already use `t.TempDir()` for `--cache-dir`, so the pattern is established). Same `path/filepath` import already present.

## Minor issues

1. **Redundant `_ = err` swallow** — `apps/birdseye/cmd/diff.go:154-157`: the body of the `if err != nil` is just `_ = err // ...`. The idiomatic swallow would be `_ = known.Add(resolveKnownPath(o.KnownModulesFile), id.Namespace+"/"+id.Name+"/"+id.Provider)`. Functionally identical; style-only.

2. **Hidden-flag duplication** — `--known-modules-file` registration appears verbatim in both `cmd/diff.go` and `cmd/versions.go`. A `cmd.addKnownModulesFlag(c, &v)` helper would DRY it. Not blocking.

3. **`Path()` failure with stray temp** — extremely unlikely on darwin/linux, but if `os.UserConfigDir()` ever fails, `resolveKnownPath` returns `""` and `Add("")` will create a temp in CWD before failing the Rename. The temp is removed on the Rename failure path. Not a real-world concern but worth noting.

agentId: ad603ba67e7f40ada (use SendMessage with to: 'ad603ba67e7f40ada' to continue this agent)
<usage>total_tokens: 82265
tool_uses: 41
duration_ms: 334412</usage>

Prompt:
You are doing a FINAL whole-feature code review on the birdseye known-modules autocomplete cache feature in worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

Per-task reviews already happened; your job is the holistic view — cross-cutting concerns, integration coherence, things visible only when seeing the whole picture.

## Feature Scope

```
BASE_SHA: 474d56d (prior whole-branch state)
HEAD_SHA: 4f53099 (this feature complete)
```

5 commits, 564 LOC added across 8 files:

```
32e305b feat(birdseye): known-modules autocomplete cache with Path/Load/Add
171c32a test(birdseye): harden known-modules cache (dedup, sort, atomic, validation)
51a2c0e feat(birdseye): cache module address after successful CLI diff
4d747fc feat(birdseye): shell completion for diff and versions from known-modules cache
4f53099 feat(birdseye): TUI textinput suggestions and best-effort cache from interactive picker
```

## Spec & Plan

- Spec: `docs/superpowers/specs/2026-05-13-birdseye-known-modules-design.md`
- Plan: `docs/superpowers/plans/2026-05-13-birdseye-known-modules.md`

## Feature Architecture Recap

New `internal/known` package persists module addresses the user has successfully diff'd or browsed in `os.UserConfigDir()/birdseye/known-modules` (plain text, sorted, atomic writes). Two consumption surfaces share that cache:

1. Cobra shell completion (`ValidArgsFunction`) on both `diff` and `versions` subcommands
2. `bubbles/textinput.SetSuggestions` in the interactive TUI picker

Two write triggers (per spec, intentionally):
- After successful positional CLI `diff` (in `runDiff` after diff is built, before render)
- After picker's `ListVersions` returns successfully (fire-and-forget via `addKnownCmd`)

The `versions` subcommand intentionally does NOT write — it only reads for completion.

## Review Focus — Cross-cutting Only

You are NOT re-reviewing individual tasks. Focus on:

1. **Integration coherence**: does the `cmd → internal/known → internal/tui` graph make sense? Any unexpected cross-package deps? Does `internal/known` stay pure (no logging, no CLI)?

2. **End-to-end correctness scenarios**:
   - User runs `birdseye diff ns/n/p vA vB` → on success, file contains `ns/n/p` (sorted, deduped)
   - User runs `birdseye diff <TAB>` after at least one successful diff → completion shows the cached address
   - User runs `birdseye diff` (interactive) → textinput shows ghost suggestion of cached address
   - User runs `birdseye versions ns/n/p` → no file written, but `versions <TAB>` reads the file
   - Two parallel diffs writing simultaneously → last writer wins, no corruption (documented behavior)
   - First-run (file doesn't exist) → everything works, completion returns no suggestions

3. **Failure modes**:
   - `os.UserConfigDir()` fails → `Path()` errors → `resolveKnownPath` returns "" → `Load("")` returns error which Load swallows to nil suggestions; `Add("")` errors which the caller swallows. No crash, no temp file leak (verified: `os.Open("")` fails before any temp creation).
   - Failed diff (404, network) → no cache write (verified by test)
   - Failed render (writer closed) → cache already written (correct behavior — diff conceptually succeeded)
   - Bad address slips into file (manual edit) → `Load` silently skips via `validAddress`

4. **Resource hygiene**:
   - Atomic temp+rename pattern in `Add` — temp cleanup on every error branch?
   - `Picker.addKnownCmd("", ...)` returns nil → no wasted goroutine?
   - `Load` defers Close + checks Scanner.Err()?

5. **Test independence**:
   - Every test uses `t.TempDir()` for the cache file — no host-config pollution?
   - The default `Path()` is never actually written to by any test (assert by running tests and checking that no `~/.config/birdseye/known-modules` file is created or modified)?

6. **Style/idiom consistency with the rest of the birdseye codebase**:
   - Error wrapping style (`fmt.Errorf("x: %w", err)`)?
   - `_ = err` swallow pattern matches the registry/cache pattern?
   - Tests use stdlib `testing` only (no testify)?
   - Hidden flag pattern matches sibling apps?

7. **Build sanity**:
   - `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go build ./... && go test -race ./... && go vet ./...` → all clean
   - The `services/crow/pkg/client` tests still pass (we didn't touch them — confirm via `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/services/crow && go test -race ./pkg/client/...`)

8. **Smoke test the new flags**:
   - `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && make build && ./bin/birdseye diff --help` — assert `--known-modules-file` is NOT shown (hidden flag)
   - `./bin/birdseye versions --help` — same (hidden)
   - Run a completion: `./bin/birdseye __complete diff ""` → should produce no error and either zero or "no suggestions" output

9. **Spec coverage**: walk the spec sections and confirm every requirement maps to a task. List any unaddressed requirements.

10. **Things that could break unrelated tests**: any change that might affect prior birdseye behavior (e.g., a subtle change to `parseModuleAddress`, an export that shadows existing identifiers)?

## Report Format

Lead with overall assessment. Then sections:

**Overall:** READY TO MERGE | NEEDS_FIXES_BEFORE_MERGE

**Integration coherence:**
**End-to-end correctness:**
**Failure modes:**
**Resource hygiene:**
**Test independence:**
**Style consistency:**
**Build sanity:**
**Smoke output:**
**Spec coverage:**

**Critical / Important / Minor issues** (only if any).

Be thorough but terse. This is the merge gate for this feature.


Real critical: four existing diff tests bypass `--known-modules-file` and pollute the host's `~/Library/Application Support/birdseye/known-modules`. Let me check and dispatch a fix.


Bash

ls -la ~/Library/Application\ Support/birdseye/ 2>&1; echo "---"; cat ~/Library/Application\ Support/birdseye/known-modules 2>&1

Check for host pollution


Error: Exit code 1
lsd: /Users/steve.briggs/Library/Application Support/birdseye/: No such file or directory (os error 2).

---
cat: /Users/steve.briggs/Library/Application Support/birdseye/known-modules: No such file or directory


Doesn't appear to have polluted my actual host (subagents likely run with sandbox isolation) — but the spec invariant is still violated, and on any unsandboxed CI/dev machine this would write to the user's real config dir. Dispatching the fix.


Agent

Fix test hermeticity

Prompt:
Fix a test hermeticity issue in `apps/birdseye/cmd/diff_test.go` inside worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

## The Issue

The known-modules spec explicitly says: "the host's real `~/.config/birdseye/known-modules` is never touched" by tests.

Four existing tests in `apps/birdseye/cmd/diff_test.go` run a successful `birdseye diff` (which triggers `known.Add(resolveKnownPath(""), ...)` → real `~/Library/Application Support/birdseye/known-modules` on macOS or `~/.config/birdseye/known-modules` on Linux) without injecting `--known-modules-file`:

- `TestDiffPlainOutput`
- `TestDiffIdenticalVersionsNoChanges`
- `TestDiffJSONOutput`
- `TestDiffSemanticIncluded`

`TestDiffBadModuleAddress` does NOT need fixing — it errors before `known.Add` runs.

## The Fix

For each of the four polluting tests, add `--known-modules-file` pointing at `filepath.Join(t.TempDir(), "known-modules")` to the `SetArgs` slice. This matches the pattern already used in `TestDiffAddsToKnownAfterSuccess`, `TestDiffDoesNotAddOnFailure`, and `TestDiffValidArgsFunctionLoadsCache`.

Concretely, for each of the four tests, find the existing `SetArgs([]string{...})` block and add two more entries:

```go
"--known-modules-file", filepath.Join(t.TempDir(), "known-modules"),
```

(Same `t.TempDir()` invocation as for `--cache-dir`; whether to reuse a single tempdir per test or create separate ones is style — single tempdir per test is fine since `t.TempDir()` cleans up after the test ends.)

NOTE: Each test already has `path/filepath` accessible via the existing imports (Task 3 added it).

The four tests are visible by `grep -n 'SetArgs' /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/diff_test.go`. Each `SetArgs` slice currently looks something like:

```go
root.SetArgs([]string{
    "diff",
    "iac/comply/aws", "1.0.0", "1.1.0",
    "--crow-url", srv.URL,
    "--plain",
    "--cache-dir", t.TempDir(),
})
```

Add the two new entries before the closing `})`:

```go
root.SetArgs([]string{
    "diff",
    "iac/comply/aws", "1.0.0", "1.1.0",
    "--crow-url", srv.URL,
    "--plain",
    "--cache-dir", t.TempDir(),
    "--known-modules-file", filepath.Join(t.TempDir(), "known-modules"),
})
```

Make this change to all FOUR polluting tests.

## Verify

After edits:

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./cmd/... -v
```

All cmd tests must pass.

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./... && go vet ./... && go build ./...
```

All clean.

## Commit

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && git add apps/birdseye/cmd/diff_test.go && git commit -m "test(birdseye): isolate cmd/diff tests from real known-modules path"
```

## Report

- **Status:** DONE | BLOCKED
- List the 4 tests fixed (function names)
- Test count + race-clean
- Commit SHA
- Anything unexpected (e.g., if you find a 5th test that also needs fixing)


**Status: DONE**

**Tests fixed (4):**
1. `TestDiffPlainOutput`
2. `TestDiffIdenticalVersionsNoChanges`
3. `TestDiffJSONOutput`
4. `TestDiffSemanticIncluded`

Each received `"--known-modules-file", filepath.Join(t.TempDir(), "known-modules")` appended to its `SetArgs` slice, redirecting all `known.Add` writes to a per-test temp directory that is cleaned up automatically.

**Results:**
- 17 tests in `./cmd/...` — all PASS, race-clean
- Full `./...` (6 packages) — all PASS, race-clean
- `go vet ./...` and `go build ./...` — clean

**Commit SHA:** `9e71395`

No 5th polluting test found — `TestDiffBadModuleAddress` correctly errors before `known.Add` runs and needs no change.

agentId: a0611c1ffafcb29b3 (use SendMessage with to: 'a0611c1ffafcb29b3' to continue this agent)
<usage>total_tokens: 19342
tool_uses: 9
duration_ms: 55837</usage>

Prompt:
Fix a test hermeticity issue in `apps/birdseye/cmd/diff_test.go` inside worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

## The Issue

The known-modules spec explicitly says: "the host's real `~/.config/birdseye/known-modules` is never touched" by tests.

Four existing tests in `apps/birdseye/cmd/diff_test.go` run a successful `birdseye diff` (which triggers `known.Add(resolveKnownPath(""), ...)` → real `~/Library/Application Support/birdseye/known-modules` on macOS or `~/.config/birdseye/known-modules` on Linux) without injecting `--known-modules-file`:

- `TestDiffPlainOutput`
- `TestDiffIdenticalVersionsNoChanges`
- `TestDiffJSONOutput`
- `TestDiffSemanticIncluded`

`TestDiffBadModuleAddress` does NOT need fixing — it errors before `known.Add` runs.

## The Fix

For each of the four polluting tests, add `--known-modules-file` pointing at `filepath.Join(t.TempDir(), "known-modules")` to the `SetArgs` slice. This matches the pattern already used in `TestDiffAddsToKnownAfterSuccess`, `TestDiffDoesNotAddOnFailure`, and `TestDiffValidArgsFunctionLoadsCache`.

Concretely, for each of the four tests, find the existing `SetArgs([]string{...})` block and add two more entries:

```go
"--known-modules-file", filepath.Join(t.TempDir(), "known-modules"),
```

(Same `t.TempDir()` invocation as for `--cache-dir`; whether to reuse a single tempdir per test or create separate ones is style — single tempdir per test is fine since `t.TempDir()` cleans up after the test ends.)

NOTE: Each test already has `path/filepath` accessible via the existing imports (Task 3 added it).

The four tests are visible by `grep -n 'SetArgs' /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/cmd/diff_test.go`. Each `SetArgs` slice currently looks something like:

```go
root.SetArgs([]string{
    "diff",
    "iac/comply/aws", "1.0.0", "1.1.0",
    "--crow-url", srv.URL,
    "--plain",
    "--cache-dir", t.TempDir(),
})
```

Add the two new entries before the closing `})`:

```go
root.SetArgs([]string{
    "diff",
    "iac/comply/aws", "1.0.0", "1.1.0",
    "--crow-url", srv.URL,
    "--plain",
    "--cache-dir", t.TempDir(),
    "--known-modules-file", filepath.Join(t.TempDir(), "known-modules"),
})
```

Make this change to all FOUR polluting tests.

## Verify

After edits:

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./cmd/... -v
```

All cmd tests must pass.

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./... && go vet ./... && go build ./...
```

All clean.

## Commit

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && git add apps/birdseye/cmd/diff_test.go && git commit -m "test(birdseye): isolate cmd/diff tests from real known-modules path"
```

## Report

- **Status:** DONE | BLOCKED
- List the 4 tests fixed (function names)
- Test count + race-clean
- Commit SHA
- Anything unexpected (e.g., if you find a 5th test that also needs fixing)


Test hermeticity locked in. Now finishing.


Launching skill: superpowers:finishing-a-development-branch