{"parentUuid":null,"isSidechain":true,"promptId":"4950cadd-213a-4517-8343-e586303f17ca","agentId":"a83f963d8ed897d31","type":"user","message":{"role":"user","content":"You are reviewing spec compliance of Task 4: tar.gz happy-path extraction.\n\n## Working Directory\n\n`/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`\n\nDiff: `git diff ee7794e..67c8b68 -- apps/birdseye/internal/archive/`\n\n## What Was Requested\n\nCreate two new files in `apps/birdseye/internal/archive/`:\n\n1. `extract.go` containing:\n   - Package doc comment about extracting tarballs from Crow\n   - `type Module struct { Files map[string][]byte }`\n   - Sentinel `ErrTooLarge`, `ErrUnsafePath`\n   - `func Extract(tarball []byte, maxBytes int64) (Module, error)` — gzip+tar decompression, regular files only, ErrTooLarge when cumulative size exceeds cap, ErrUnsafePath for absolute paths / `..` traversal / backslashes\n   - Helper `safePath` and `containsDotDot`\n\n2. `extract_test.go` containing:\n   - Test helper `buildTarGz(t, files)` (package-private)\n   - `TestExtractHappyPath` — 3 files extracted with correct bodies\n   - `TestExtractEmptyArchive` — empty archive → empty Files map\n   - `TestExtractMalformedGzip` — non-gzip → error\n\nStrict TDD. Commit message exactly: `feat(birdseye): tar.gz extraction with happy-path coverage`. Only `apps/birdseye/internal/archive/` paths staged.\n\n## Implementer Claim\n\nDONE. Commit `67c8b68`. 3 tests pass with `-race`. `tar.TypeRegA` kept with `//nolint:staticcheck`.\n\n## Verify Independently\n\nRead the diff. Confirm:\n\n1. Both files created, no other files touched.\n2. `Module.Files` is `map[string][]byte` (not `map[string]string`).\n3. `Extract` signature exactly `func Extract(tarball []byte, maxBytes int64) (Module, error)`.\n4. Sentinel errors `ErrTooLarge` and `ErrUnsafePath` exported.\n5. Happy path test asserts both file count and per-file body content.\n6. `safePath` rejects:\n   - empty name\n   - leading `/` (absolute path)\n   - backslash\n   - `..` segments (via `containsDotDot`)\n7. `containsDotDot` only matches `..` as a full segment (preceded by start-or-slash and followed by slash-or-end), not e.g. `foo..bar`.\n8. Reading file body uses `io.ReadFull` with `hdr.Size`-sized buffer (correct for non-streaming reads of known size).\n9. Test helper `buildTarGz` is named exactly that and is reusable for Task 5.\n10. Commit message exact.\n\n## Report\n\n✅ Spec compliant OR ❌ Issues with file:line refs. Be terse."},"uuid":"d3ff2c1d-1165-4386-8c3f-eefe6668a7ca","timestamp":"2026-05-13T03:14:34.001Z","userType":"external","entrypoint":"cli","cwd":"/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye","sessionId":"74075c1b-8f97-4121-a098-e59c7cc79339","version":"2.1.139","gitBranch":"worktree-birdseye"}
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{"parentUuid":"a706f973-d0ac-40fd-a8c4-cbdba9f1706c","isSidechain":true,"promptId":"4950cadd-213a-4517-8343-e586303f17ca","agentId":"a83f963d8ed897d31","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01XUJgSN8XXUJeU6vKZYZGgA","type":"tool_result","content":"diff --git a/apps/birdseye/internal/archive/extract.go b/apps/birdseye/internal/archive/extract.go\nnew file mode 100644\nindex 0000000..0821062\n--- /dev/null\n+++ b/apps/birdseye/internal/archive/extract.go\n@@ -0,0 +1,104 @@\n+// Package archive extracts gzipped tar archives from Crow into an\n+// in-memory file map. Diff and TUI layers consume the resulting Module\n+// type and never touch the network themselves.\n+package archive\n+\n+import (\n+\t\"archive/tar\"\n+\t\"bytes\"\n+\t\"compress/gzip\"\n+\t\"errors\"\n+\t\"fmt\"\n+\t\"io\"\n+)\n+\n+// Module is the in-memory representation of an extracted module tarball.\n+// Keys are forward-slash relative paths. Symlinks are not stored.\n+type Module struct {\n+\tFiles map[string][]byte\n+}\n+\n+var (\n+\tErrTooLarge   = errors.New(\"archive exceeds size cap\")\n+\tErrUnsafePath = errors.New(\"archive contains unsafe path\")\n+)\n+\n+// Extract decompresses and untars tarball into a Module. If the\n+// cumulative uncompressed size exceeds maxBytes, Extract returns\n+// ErrTooLarge. Paths containing \"..\" or absolute roots are rejected with\n+// ErrUnsafePath. Symlinks are dropped silently (they are not useful\n+// inputs to a textual or semantic diff).\n+func Extract(tarball []byte, maxBytes int64) (Module, error) {\n+\tgz, err := gzip.NewReader(bytes.NewReader(tarball))\n+\tif err != nil {\n+\t\treturn Module{}, fmt.Errorf(\"gzip: %w\", err)\n+\t}\n+\tdefer gz.Close()\n+\n+\ttr := tar.NewReader(gz)\n+\tfiles := make(map[string][]byte)\n+\tvar total int64\n+\tfor {\n+\t\thdr, err := tr.Next()\n+\t\tif errors.Is(err, io.EOF) {\n+\t\t\tbreak\n+\t\t}\n+\t\tif err != nil {\n+\t\t\treturn Module{}, fmt.Errorf(\"tar: %w\", err)\n+\t\t}\n+\t\tswitch hdr.Typeflag {\n+\t\tcase tar.TypeReg, tar.TypeRegA: //nolint:staticcheck\n+\t\t\tif err := safePath(hdr.Name); err != nil {\n+\t\t\t\treturn Module{}, err\n+\t\t\t}\n+\t\t\ttotal += hdr.Size\n+\t\t\tif total > maxBytes {\n+\t\t\t\treturn Module{}, ErrTooLarge\n+\t\t\t}\n+\t\t\tbody := make([]byte, hdr.Size)\n+\t\t\tif _, err := io.ReadFull(tr, body); err != nil {\n+\t\t\t\treturn Module{}, fmt.Errorf(\"reading %s: %w\", hdr.Name, err)\n+\t\t\t}\n+\t\t\tfiles[hdr.Name] = body\n+\t\tdefault:\n+\t\t\t// Directories, symlinks, etc. ignored.\n+\t\t}\n+\t}\n+\treturn Module{Files: files}, nil\n+}\n+\n+func safePath(name string) error {\n+\tif name == \"\" {\n+\t\treturn fmt.Errorf(\"%w: empty name\", ErrUnsafePath)\n+\t}\n+\tif name[0] == '/' {\n+\t\treturn fmt.Errorf(\"%w: absolute path %q\", ErrUnsafePath, name)\n+\t}\n+\t// Reject any segment that is \"..\", or any path containing \"..\".\n+\tfor i := 0; i < len(name); i++ {\n+\t\tif name[i] == '\\\\' {\n+\t\t\treturn fmt.Errorf(\"%w: backslash in path %q\", ErrUnsafePath, name)\n+\t\t}\n+\t}\n+\tif containsDotDot(name) {\n+\t\treturn fmt.Errorf(\"%w: path traversal in %q\", ErrUnsafePath, name)\n+\t}\n+\treturn nil\n+}\n+\n+func containsDotDot(p string) bool {\n+\tfor i := 0; i < len(p); i++ {\n+\t\tif p[i] != '.' {\n+\t\t\tcontinue\n+\t\t}\n+\t\t// Check for \"..\" preceded by start-or-slash, followed by slash-or-end.\n+\t\tif i+1 < len(p) && p[i+1] == '.' {\n+\t\t\tstartOK := i == 0 || p[i-1] == '/'\n+\t\t\tendOK := i+2 == len(p) || p[i+2] == '/'\n+\t\t\tif startOK && endOK {\n+\t\t\t\treturn true\n+\t\t\t}\n+\t\t}\n+\t}\n+\treturn false\n+}\ndiff --git a/apps/birdseye/internal/archive/extract_test.go b/apps/birdseye/internal/archive/extract_test.go\nnew file mode 100644\nindex 0000000..72dd31b\n--- /dev/null\n+++ b/apps/birdseye/internal/archive/extract_test.go\n@@ -0,0 +1,82 @@\n+package archive\n+\n+import (\n+\t\"archive/tar\"\n+\t\"bytes\"\n+\t\"compress/gzip\"\n+\t\"testing\"\n+)\n+\n+// buildTarGz produces a gzipped tar with the given files in memory.\n+// Used by archive, diff, and registry tests.\n+func buildTarGz(t *testing.T, files map[string]string) []byte {\n+\tt.Helper()\n+\tvar buf bytes.Buffer\n+\tgz := gzip.NewWriter(&buf)\n+\ttw := tar.NewWriter(gz)\n+\tfor name, body := range files {\n+\t\thdr := &tar.Header{\n+\t\t\tName: name,\n+\t\t\tMode: 0o644,\n+\t\t\tSize: int64(len(body)),\n+\t\t}\n+\t\tif err := tw.WriteHeader(hdr); err != nil {\n+\t\t\tt.Fatalf(\"WriteHeader %s: %v\", name, err)\n+\t\t}\n+\t\tif _, err := tw.Write([]byte(body)); err != nil {\n+\t\t\tt.Fatalf(\"Write %s: %v\", name, err)\n+\t\t}\n+\t}\n+\tif err := tw.Close(); err != nil {\n+\t\tt.Fatal(err)\n+\t}\n+\tif err := gz.Close(); err != nil {\n+\t\tt.Fatal(err)\n+\t}\n+\treturn buf.Bytes()\n+}\n+\n+func TestExtractHappyPath(t *testing.T) {\n+\tin := map[string]string{\n+\t\t\"main.tf\":      \"resource \\\"aws_s3_bucket\\\" \\\"x\\\" {}\\n\",\n+\t\t\"variables.tf\": \"variable \\\"name\\\" { type = string }\\n\",\n+\t\t\"README.md\":    \"hello\\n\",\n+\t}\n+\ttgz := buildTarGz(t, in)\n+\n+\tmod, err := Extract(tgz, 1<<20)\n+\tif err != nil {\n+\t\tt.Fatalf(\"Extract: %v\", err)\n+\t}\n+\tif len(mod.Files) != len(in) {\n+\t\tt.Fatalf(\"got %d files, want %d\", len(mod.Files), len(in))\n+\t}\n+\tfor name, want := range in {\n+\t\tgot, ok := mod.Files[name]\n+\t\tif !ok {\n+\t\t\tt.Errorf(\"missing file: %s\", name)\n+\t\t\tcontinue\n+\t\t}\n+\t\tif string(got) != want {\n+\t\t\tt.Errorf(\"%s body = %q, want %q\", name, got, want)\n+\t\t}\n+\t}\n+}\n+\n+func TestExtractEmptyArchive(t *testing.T) {\n+\ttgz := buildTarGz(t, nil)\n+\tmod, err := Extract(tgz, 1<<20)\n+\tif err != nil {\n+\t\tt.Fatalf(\"Extract empty: %v\", err)\n+\t}\n+\tif len(mod.Files) != 0 {\n+\t\tt.Errorf(\"expected 0 files, got %d\", len(mod.Files))\n+\t}\n+}\n+\n+func TestExtractMalformedGzip(t *testing.T) {\n+\t_, err := Extract([]byte(\"not a gzip\"), 1<<20)\n+\tif err == nil {\n+\t\tt.Fatal(\"expected error on malformed input\")\n+\t}\n+}","is_error":false}]},"uuid":"07bb07c7-eb09-4fb5-936d-d2b46b5d766a","timestamp":"2026-05-13T03:14:39.033Z","sourceToolAssistantUUID":"a706f973-d0ac-40fd-a8c4-cbdba9f1706c","userType":"external","entrypoint":"cli","cwd":"/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye","sessionId":"74075c1b-8f97-4121-a098-e59c7cc79339","version":"2.1.139","gitBranch":"worktree-birdseye"}
{"parentUuid":"07bb07c7-eb09-4fb5-936d-d2b46b5d766a","isSidechain":true,"agentId":"a83f963d8ed897d31","message":{"model":"claude-sonnet-4-6","id":"msg_01WoiNH4fGrMYnKVHExBdgaX","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01VnPYm19MDRPAmod7nGysrH","name":"Bash","input":{"command":"git log ee7794e..67c8b68 --format=\"%H %s\"","description":"Check commit message"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":2487,"cache_read_input_tokens":11733,"output_tokens":115,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":2487},"inference_geo":"","iterations":[{"input_tokens":1,"output_tokens":115,"cache_read_input_tokens":11733,"cache_creation_input_tokens":2487,"cache_creation":{"ephemeral_5m_input_tokens":2487,"ephemeral_1h_input_tokens":0},"type":"message"}],"speed":"standard"},"diagnostics":null},"requestId":"req_011Cayqfw3Y418pPhWFqVv2P","attributionAgent":"general-purpose","attributionSkill":"superpowers:using-git-worktrees","attributionPlugin":"superpowers","type":"assistant","uuid":"2e7781fe-9101-4c85-8e38-ddb6a8d8a8eb","timestamp":"2026-05-13T03:14:41.671Z","userType":"external","entrypoint":"cli","cwd":"/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye","sessionId":"74075c1b-8f97-4121-a098-e59c7cc79339","version":"2.1.139","gitBranch":"worktree-birdseye"}
{"parentUuid":"2e7781fe-9101-4c85-8e38-ddb6a8d8a8eb","isSidechain":true,"promptId":"4950cadd-213a-4517-8343-e586303f17ca","agentId":"a83f963d8ed897d31","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01VnPYm19MDRPAmod7nGysrH","type":"tool_result","content":"67c8b6849d6b9bdb0a39bfbfc1cb21c48c98edee feat(birdseye): tar.gz extraction with happy-path coverage","is_error":false}]},"uuid":"d65fbef5-668a-4ce7-beef-af2505fc688c","timestamp":"2026-05-13T03:14:42.368Z","sourceToolAssistantUUID":"2e7781fe-9101-4c85-8e38-ddb6a8d8a8eb","userType":"external","entrypoint":"cli","cwd":"/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye","sessionId":"74075c1b-8f97-4121-a098-e59c7cc79339","version":"2.1.139","gitBranch":"worktree-birdseye"}
{"parentUuid":"d65fbef5-668a-4ce7-beef-af2505fc688c","isSidechain":true,"agentId":"a83f963d8ed897d31","message":{"model":"claude-sonnet-4-6","id":"msg_01P2TiMv86NGRgcasjnYk9NR","type":"message","role":"assistant","content":[{"type":"text","text":"✅ Spec compliant. All 10 checks pass:\n\n1. **Both files created, no other files touched.** Only `extract.go` and `extract_test.go` appear in the diff.\n2. **`Module.Files` is `map[string][]byte`.** `extract.go:20`.\n3. **`Extract` signature exact.** `func Extract(tarball []byte, maxBytes int64) (Module, error)` at `extract.go:32`.\n4. **Sentinels exported.** `ErrTooLarge` and `ErrUnsafePath` declared via `errors.New` at `extract.go:24-25`.\n5. **Happy path asserts count and per-file body.** `TestExtractHappyPath` checks `len(mod.Files) != len(in)` then iterates and compares `string(got) != want` for each file (`extract_test.go:51-64`).\n6. **`safePath` rejects all required cases.** Empty name (`extract.go:67`), leading `/` (`extract.go:70`), backslash loop (`extract.go:73-76`), `..` via `containsDotDot` (`extract.go:78`).\n7. **`containsDotDot` is segment-exact.** Checks `startOK := i == 0 || p[i-1] == '/'` and `endOK := i+2 == len(p) || p[i+2] == '/'`, so `foo..bar` is not matched (`extract.go:88-94`).\n8. **`io.ReadFull` with `hdr.Size`-sized buffer.** `body := make([]byte, hdr.Size)` + `io.ReadFull(tr, body)` at `extract.go:56-59`.\n9. **`buildTarGz` named exactly that** and accepts `map[string]string` making it reusable for Task 5 (`extract_test.go:13`).\n10. **Commit message exact.** `feat(birdseye): tar.gz extraction with happy-path coverage`."}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":147,"cache_read_input_tokens":14220,"cache_creation":{"ephemeral_5m_input_tokens":147,"ephemeral_1h_input_tokens":0},"output_tokens":4,"service_tier":"standard","inference_geo":"not_available"},"diagnostics":null},"requestId":"req_011CayqgBKGnuBmun3o3CD7k","attributionAgent":"general-purpose","attributionSkill":"superpowers:using-git-worktrees","attributionPlugin":"superpowers","type":"assistant","uuid":"c5f37f7b-e48c-4339-983b-3d0ffeea5c3a","timestamp":"2026-05-13T03:14:52.725Z","userType":"external","entrypoint":"cli","cwd":"/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye","sessionId":"74075c1b-8f97-4121-a098-e59c7cc79339","version":"2.1.139","gitBranch":"worktree-birdseye"}