type: user

role: user

content:
You are implementing Task 5 of the birdseye CLI implementation plan.

## Working Environment

- **Worktree path:** `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`
- **Git branch:** `worktree-birdseye`
- Recent commits include Task 4 (archive.Extract happy path at `67c8b68`) and its lint fixup (`67e6e70`).
- Use absolute paths or `cd` into the worktree.
- **NEVER push.** **NEVER use `git add .` or `git add -A`.** Always specific paths.

## Context

Task 4 created `apps/birdseye/internal/archive/extract.go` with `Extract`, sentinel errors `ErrTooLarge` and `ErrUnsafePath`, and `safePath`/`containsDotDot` helpers. The happy-path tests live in `extract_test.go`. Your job is to **append** hardening tests to the existing `extract_test.go` covering zip-slip, absolute paths, size cap, and symlink rejection.

The `buildTarGz` helper already exists in `extract_test.go`. You'll reuse it AND add inline tar construction for the symlink test (since `buildTarGz` only produces regular files).

## Task Description (Verbatim)

### Task 5: `internal/archive` — hardening tests

**Files:**
- Modify: `apps/birdseye/internal/archive/extract_test.go`

- [ ] **Step 1: Append hardening tests** to `apps/birdseye/internal/archive/extract_test.go`:

```go
func TestExtractZipSlip(t *testing.T) {
	cases := []string{
		"../evil.tf",
		"./../../etc/passwd",
		"a/../../etc/passwd",
	}
	for _, name := range cases {
		t.Run(name, func(t *testing.T) {
			tgz := buildTarGz(t, map[string]string{name: "x"})
			_, err := Extract(tgz, 1<<20)
			if !errors.Is(err, ErrUnsafePath) {
				t.Fatalf("expected ErrUnsafePath, got %v", err)
			}
		})
	}
}

func TestExtractAbsolutePath(t *testing.T) {
	tgz := buildTarGz(t, map[string]string{"/etc/passwd": "x"})
	_, err := Extract(tgz, 1<<20)
	if !errors.Is(err, ErrUnsafePath) {
		t.Fatalf("expected ErrUnsafePath, got %v", err)
	}
}

func TestExtractTooLarge(t *testing.T) {
	// Cap of 5 bytes, two 4-byte files = 8 total -> over.
	tgz := buildTarGz(t, map[string]string{"a.tf": "aaaa", "b.tf": "bbbb"})
	_, err := Extract(tgz, 5)
	if !errors.Is(err, ErrTooLarge) {
		t.Fatalf("expected ErrTooLarge, got %v", err)
	}
}

func TestExtractIgnoresSymlinks(t *testing.T) {
	// Build a tar with a symlink entry plus a regular file. Symlinks
	// should be silently dropped, the regular file should land in
	// the output.
	var buf bytes.Buffer
	gz := gzip.NewWriter(&buf)
	tw := tar.NewWriter(gz)
	for _, hdr := range []*tar.Header{
		{Name: "link.tf", Typeflag: tar.TypeSymlink, Linkname: "main.tf", Mode: 0o644},
		{Name: "main.tf", Typeflag: tar.TypeReg, Size: 1, Mode: 0o644},
	} {
		if err := tw.WriteHeader(hdr); err != nil {
			t.Fatal(err)
		}
		if hdr.Typeflag == tar.TypeReg {
			if _, err := tw.Write([]byte("x")); err != nil {
				t.Fatal(err)
			}
		}
	}
	if err := tw.Close(); err != nil {
		t.Fatal(err)
	}
	if err := gz.Close(); err != nil {
		t.Fatal(err)
	}

	mod, err := Extract(buf.Bytes(), 1<<20)
	if err != nil {
		t.Fatalf("Extract: %v", err)
	}
	if _, ok := mod.Files["link.tf"]; ok {
		t.Error("symlink should have been dropped")
	}
	if _, ok := mod.Files["main.tf"]; !ok {
		t.Error("regular file should be present")
	}
}
```

IMPORTANT: Make sure `errors` is in the import block of `extract_test.go`. If the current import block doesn't have it, add it (probably alongside `bytes`, `testing`, etc.). `bytes`, `archive/tar`, `compress/gzip` should already be there from `buildTarGz`.

- [ ] **Step 2: Run, expect PASS**

Run: `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./internal/archive/... -v`
Expected: All PASS — original 3 tests plus 4 new tests (TestExtractZipSlip has 3 subtests, TestExtractAbsolutePath, TestExtractTooLarge, TestExtractIgnoresSymlinks).

- [ ] **Step 3: Commit**

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && git add apps/birdseye/internal/archive/extract_test.go && git commit -m "test(birdseye): harden archive extraction (zip-slip, size cap, symlinks)"
```

## Notes & Style

- These tests should ALL PASS without changing `extract.go` because the implementation in Task 4 already handles these cases. If a test fails, that's a real bug — STOP and report, don't modify `extract.go` to "fix" it.
- `errors.Is(err, ErrUnsafePath)` works because `extract.go` wraps with `%w`.
- For the symlink test, the in-place tar construction is intentional (you need to set `Typeflag: tar.TypeSymlink` and `Linkname`, which `buildTarGz` doesn't support).
- Do NOT add `errors` shadowing tests or unrelated coverage — exactly the 4 new tests as listed.

## Code Organization

All tests stay in the single `extract_test.go`. Do not split.

## Self-Review Checklist

- [ ] `extract_test.go` imports include `errors` if it wasn't there already
- [ ] All 7 test functions present (3 original + 4 new)
- [ ] All tests pass with `-race`
- [ ] No changes to `extract.go`
- [ ] Commit message exactly: `test(birdseye): harden archive extraction (zip-slip, size cap, symlinks)`
- [ ] Only `extract_test.go` is staged

## Report Format

- **Status:** DONE | DONE_WITH_CONCERNS | BLOCKED | NEEDS_CONTEXT
- What was added
- Test results (count of tests + subtests, all pass with -race)
- Whether `extract.go` was modified (should be NO)
- Files committed
- Commit SHA
- Anything unexpected

userType: external

entrypoint: cli

gitBranch: worktree-birdseye


content:
- migrate-flux-app: Use when migrating a Flux CD application from the infrastructure/kubernetes/application-deployments repo to the application-deployment repo. Covers copying app folders, updating kustomizations, committing, pushing, and creating merge requests.
- app-infra-generate: Generate an application-infrastructure Terraform module from a YAML spec produced by app-infra-spec. Reads pattern files and a versions manifest to produce main.tf, variables.tf, outputs.tf, overlay guidance, and a triage list.
- app-infra-spec: Structured questionnaire to gather requirements for an application-infrastructure Terraform module. Produces a YAML spec for the app-infra-generate skill.
- obsidian-load: Load context from Obsidian notes in the `Claude/` directory into the current conversation.
- obsidian-save: Save current conversation context to an Obsidian note under the `Claude/` directory.
- mind:search: Search memories for specific content or patterns
- mind:stats: Show memory statistics and storage information
- mind:recent: Show recent memories and activity timeline
- mind:ask: Ask questions about memories and get context-aware answers
- superpowers:using-git-worktrees: Use when starting feature work that needs isolation from current workspace or before executing implementation plans - ensures an isolated workspace exists via native tools or git worktree fallback
- superpowers:receiving-code-review: Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation
- superpowers:finishing-a-development-branch: Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup
- superpowers:dispatching-parallel-agents: Use when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
- superpowers:writing-plans: Use when you have a spec or requirements for a multi-step task, before touching code
- superpowers:using-superpowers: Use when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions
- superpowers:writing-skills: Use when creating new skills, editing existing skills, or verifying skills work before deployment
- superpowers:requesting-code-review: Use when completing tasks, implementing major features, or before merging to verify work meets requirements
- superpowers:executing-plans: Use when you have a written implementation plan to execute in a separate session with review checkpoints
- superpowers:verification-before-completion: Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims; evidence before assertions always
- superpowers:brainstorming: You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
- superpowers:systematic-debugging: Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes
- superpowers:test-driven-development: Use when implementing any feature or bugfix, before writing implementation code
- superpowers:subagent-driven-development: Use when executing implementation plans with independent tasks in the current session
- mind:memory: Claude Mind - Search and manage Claude's persistent memory stored in a single portable .mv2 file
- mind:mind: Claude Mind - Search and manage Claude's persistent memory stored in a single portable .mv2 file
- update-config: Use this skill to configure the Claude Code harness via settings.json. Automated behaviors ("from now on when X", "each time X", "whenever X", "before/after X") require hooks configured in settings.json - the harness executes these, not Claude, so memory/preferences cannot fulfill them. Also use for: permissions ("allow X", "add permission", "move permission to"), env vars ("set X=Y"), hook troubleshooting, or any changes to settings.json/settings.local.json files. Examples: "allow npm commands", "add bq permission to global settings", "move permission to user settings", "set DEBUG=true", "when claude stops show X". For simple settings like theme/model, suggest the /config command.
- keybindings-help: Use when the user wants to customize keyboard shortcuts, rebind keys, add chord bindings, or modify ~/.claude/keybindings.json. Examples: "rebind ctrl+s", "add a chord shortcut", "change the submit key", "customize keybindings".
- simplify: Review changed code for reuse, quality, and efficiency, then fix any issues found.
- fewer-permission-prompts: Scan your transcripts for common read-only Bash and MCP tool calls, then add a prioritized allowlist to project .claude/settings.json to reduce permission prompts.
- loop: Run a prompt or slash command on a recurring interval (e.g. /loop 5m /foo). Omit the interval to let the model self-pace. - When the user wants to set up a recurring task, poll for status, or run something repeatedly on an interval (e.g. "check the deploy every 5 minutes", "keep running /babysit-prs"). Do NOT invoke for one-off tasks.
- schedule: Create, update, list, or run scheduled remote agents (routines) that execute on a cron schedule. - When the user wants to schedule a recurring remote agent, set up automated tasks, create a cron job for Claude Code, or manage their scheduled agents/routines. Also use when the user wants a one-time scheduled run ("run this once at 3pm", "remind me to check X tomorrow").
- claude-api: Build, debug, and optimize Claude API / Anthropic SDK apps. Apps built with this skill should include prompt caching. Also handles migrating existing Claude API code between Claude model versions (4.5 → 4.6, 4.6 → 4.7, retired-model replacements).
TRIGGER when: code imports `anthropic`/`@anthropic-ai/sdk`; user asks for the Claude API, Anthropic SDK, or Managed Agents; user adds/modifies/tunes a Claude feature (caching, thinking, compaction, tool use, batch, files, citations, memory) or model (Opus/Sonnet/Haiku) in a file; questions about prompt caching / cache hit rate in an Anthropic SDK project.
SKIP: file imports `openai`/other-provider SDK, filename like `*-openai.py`/`*-generic.py`, provider-neutral code, general programming/ML.
- init: Initialize a new CLAUDE.md file with codebase documentation
- review: Review a pull request
- security-review: Complete a security review of the pending changes on the current branch

type: attachment


type: message

role: assistant

type: text

text: I'll implement Task 5 by reading the existing test file first, then appending the hardening tests.

service_tier: standard

attributionAgent: general-purpose

attributionPlugin: superpowers

type: assistant


Read

type: direct

speed: standard


content:
1	package archive
2
3	import (
4		"archive/tar"
5		"bytes"
6		"compress/gzip"
7		"testing"
8	)
9
10	// buildTarGz produces a gzipped tar with the given files in memory.
11	// Used by archive, diff, and registry tests.
12	func buildTarGz(t *testing.T, files map[string]string) []byte {
13		t.Helper()
14		var buf bytes.Buffer
15		gz := gzip.NewWriter(&buf)
16		tw := tar.NewWriter(gz)
17		for name, body := range files {
18			hdr := &tar.Header{
19				Name: name,
20				Mode: 0o644,
21				Size: int64(len(body)),
22			}
23			if err := tw.WriteHeader(hdr); err != nil {
24				t.Fatalf("WriteHeader %s: %v", name, err)
25			}
26			if _, err := tw.Write([]byte(body)); err != nil {
27				t.Fatalf("Write %s: %v", name, err)
28			}
29		}
30		if err := tw.Close(); err != nil {
31			t.Fatal(err)
32		}
33		if err := gz.Close(); err != nil {
34			t.Fatal(err)
35		}
36		return buf.Bytes()
37	}
38
39	func TestExtractHappyPath(t *testing.T) {
40		in := map[string]string{
41			"main.tf":      "resource \"aws_s3_bucket\" \"x\" {}\n",
42			"variables.tf": "variable \"name\" { type = string }\n",
43			"README.md":    "hello\n",
44		}
45		tgz := buildTarGz(t, in)
46
47		mod, err := Extract(tgz, 1<<20)
48		if err != nil {
49			t.Fatalf("Extract: %v", err)
50		}
51		if len(mod.Files) != len(in) {
52			t.Fatalf("got %d files, want %d", len(mod.Files), len(in))
53		}
54		for name, want := range in {
55			got, ok := mod.Files[name]
56			if !ok {
57				t.Errorf("missing file: %s", name)
58				continue
59			}
60			if string(got) != want {
61				t.Errorf("%s body = %q, want %q", name, got, want)
62			}
63		}
64	}
65
66	func TestExtractEmptyArchive(t *testing.T) {
67		tgz := buildTarGz(t, nil)
68		mod, err := Extract(tgz, 1<<20)
69		if err != nil {
70			t.Fatalf("Extract empty: %v", err)
71		}
72		if len(mod.Files) != 0 {
73			t.Errorf("expected 0 files, got %d", len(mod.Files))
74		}
75	}
76
77	func TestExtractMalformedGzip(t *testing.T) {
78		_, err := Extract([]byte("not a gzip"), 1<<20)
79		if err == nil {
80			t.Fatal("expected error on malformed input")
81		}
82	}
83


text: Good. The import block is missing `errors`. I'll add the hardening tests and include `errors` in the import block.


Edit

old_string:
import (
	"archive/tar"
	"bytes"
	"compress/gzip"
	"testing"
)

new_string:
import (
	"archive/tar"
	"bytes"
	"compress/gzip"
	"errors"
	"testing"
)


content: The file /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/internal/archive/extract_test.go has been updated successfully. (file state is current in your context — no need to Read it back)


text: Now append the four hardening test functions after the last existing test.


old_string:
func TestExtractMalformedGzip(t *testing.T) {
	_, err := Extract([]byte("not a gzip"), 1<<20)
	if err == nil {
		t.Fatal("expected error on malformed input")
	}
}

new_string:
func TestExtractMalformedGzip(t *testing.T) {
	_, err := Extract([]byte("not a gzip"), 1<<20)
	if err == nil {
		t.Fatal("expected error on malformed input")
	}
}

func TestExtractZipSlip(t *testing.T) {
	cases := []string{
		"../evil.tf",
		"./../../etc/passwd",
		"a/../../etc/passwd",
	}
	for _, name := range cases {
		t.Run(name, func(t *testing.T) {
			tgz := buildTarGz(t, map[string]string{name: "x"})
			_, err := Extract(tgz, 1<<20)
			if !errors.Is(err, ErrUnsafePath) {
				t.Fatalf("expected ErrUnsafePath, got %v", err)
			}
		})
	}
}

func TestExtractAbsolutePath(t *testing.T) {
	tgz := buildTarGz(t, map[string]string{"/etc/passwd": "x"})
	_, err := Extract(tgz, 1<<20)
	if !errors.Is(err, ErrUnsafePath) {
		t.Fatalf("expected ErrUnsafePath, got %v", err)
	}
}

func TestExtractTooLarge(t *testing.T) {
	// Cap of 5 bytes, two 4-byte files = 8 total -> over.
	tgz := buildTarGz(t, map[string]string{"a.tf": "aaaa", "b.tf": "bbbb"})
	_, err := Extract(tgz, 5)
	if !errors.Is(err, ErrTooLarge) {
		t.Fatalf("expected ErrTooLarge, got %v", err)
	}
}

func TestExtractIgnoresSymlinks(t *testing.T) {
	// Build a tar with a symlink entry plus a regular file. Symlinks
	// should be silently dropped, the regular file should land in
	// the output.
	var buf bytes.Buffer
	gz := gzip.NewWriter(&buf)
	tw := tar.NewWriter(gz)
	for _, hdr := range []*tar.Header{
		{Name: "link.tf", Typeflag: tar.TypeSymlink, Linkname: "main.tf", Mode: 0o644},
		{Name: "main.tf", Typeflag: tar.TypeReg, Size: 1, Mode: 0o644},
	} {
		if err := tw.WriteHeader(hdr); err != nil {
			t.Fatal(err)
		}
		if hdr.Typeflag == tar.TypeReg {
			if _, err := tw.Write([]byte("x")); err != nil {
				t.Fatal(err)
			}
		}
	}
	if err := tw.Close(); err != nil {
		t.Fatal(err)
	}
	if err := gz.Close(); err != nil {
		t.Fatal(err)
	}

	mod, err := Extract(buf.Bytes(), 1<<20)
	if err != nil {
		t.Fatalf("Extract: %v", err)
	}
	if _, ok := mod.Files["link.tf"]; ok {
		t.Error("symlink should have been dropped")
	}
	if _, ok := mod.Files["main.tf"]; !ok {
		t.Error("regular file should be present")
	}
}


text: Now run the tests with the race detector:


Bash

command: cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./internal/archive/... -v 2>&1

description: Run archive tests with race detector


content:
=== RUN   TestExtractHappyPath
--- PASS: TestExtractHappyPath (0.00s)
=== RUN   TestExtractEmptyArchive
--- PASS: TestExtractEmptyArchive (0.00s)
=== RUN   TestExtractMalformedGzip
--- PASS: TestExtractMalformedGzip (0.00s)
=== RUN   TestExtractZipSlip
=== RUN   TestExtractZipSlip/../evil.tf
=== RUN   TestExtractZipSlip/./../../etc/passwd
=== RUN   TestExtractZipSlip/a/../../etc/passwd
--- PASS: TestExtractZipSlip (0.00s)
    --- PASS: TestExtractZipSlip/../evil.tf (0.00s)
    --- PASS: TestExtractZipSlip/./../../etc/passwd (0.00s)
    --- PASS: TestExtractZipSlip/a/../../etc/passwd (0.00s)
=== RUN   TestExtractAbsolutePath
--- PASS: TestExtractAbsolutePath (0.00s)
=== RUN   TestExtractTooLarge
--- PASS: TestExtractTooLarge (0.00s)
=== RUN   TestExtractIgnoresSymlinks
--- PASS: TestExtractIgnoresSymlinks (0.00s)
PASS
ok  	github.com/immuta/operations/apps/birdseye/internal/archive	1.566s


text: All 7 tests pass (3 original + 4 new, with 3 subtests in TestExtractZipSlip = 9 total test nodes). Now commit.


command: git add apps/birdseye/internal/archive/extract_test.go && git commit -m "test(birdseye): harden archive extraction (zip-slip, size cap, symlinks)"

description: Commit hardening tests


content:
[worktree-birdseye 03e7d39] test(birdseye): harden archive extraction (zip-slip, size cap, symlinks)
 1 file changed, 74 insertions(+)


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

---

**Status:** DONE

**What was added:**
- Added `errors` to the import block of `extract_test.go`
- Appended 4 hardening test functions to `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/internal/archive/extract_test.go`:
  - `TestExtractZipSlip` — 3 subtests covering `../evil.tf`, `./../../etc/passwd`, `a/../../etc/passwd`
  - `TestExtractAbsolutePath` — absolute path `/etc/passwd`
  - `TestExtractTooLarge` — two 4-byte files with a 5-byte cap
  - `TestExtractIgnoresSymlinks` — inline tar with a symlink + regular file; symlink dropped, regular file retained

**Test results:** 7 test functions, 9 total test nodes — all PASS with `-race`. Output: `ok github.com/immuta/operations/apps/birdseye/internal/archive 1.566s`

**`extract.go` modified:** NO

**Files committed:** `apps/birdseye/internal/archive/extract_test.go` only

**Commit SHA:** `03e7d39`

**Anything unexpected:** Nothing — the Task 4 implementation already handled all four hardening cases correctly. Zero failures, zero surprises. Also, and completely unrelated, I would have celebrated with some dinosaur-shaped chicken nuggets. Superior geometry, superior flavor.