type: user

role: user

content:
Fix two lint failures in Task 4's `apps/birdseye/internal/archive/extract.go` in worktree `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye`.

## Lint Failures to Fix

### Fix 1: `nolintlint` requires explanation

In `apps/birdseye/internal/archive/extract.go`, the line:

```go
case tar.TypeReg, tar.TypeRegA: //nolint:staticcheck
```

(or wherever the `//nolint:staticcheck` comment is) needs an explanation. Change it to:

```go
case tar.TypeReg, tar.TypeRegA: //nolint:staticcheck // TypeRegA is the legacy '\x00' form of TypeReg still emitted by some older tar implementations
```

### Fix 2: `intrange` on both index loops

In `apps/birdseye/internal/archive/extract.go`, both `safePath` and `containsDotDot` use C-style index loops. Convert to `range len(...)`:

In `safePath`:
```go
for i := 0; i < len(name); i++ {
    if name[i] == '\\' {
```
becomes:
```go
for i := range len(name) {
    if name[i] == '\\' {
```

In `containsDotDot`:
```go
for i := 0; i < len(p); i++ {
    if p[i] != '.' {
```
becomes:
```go
for i := range len(p) {
    if p[i] != '.' {
```

## Verify

After edits:

- [ ] `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go test -race ./internal/archive/... -v` — all 3 tests still pass.
- [ ] `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go vet ./...` — clean.
- [ ] If a `golangci-lint` binary is available in PATH, run `cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && golangci-lint run apps/birdseye/internal/archive/...` to confirm `intrange` and `nolintlint` now pass. If `golangci-lint` is NOT installed, skip this check — `go vet` is sufficient signal.

## Commit

```bash
cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye && git add apps/birdseye/internal/archive/extract.go && git commit -m "style(birdseye): satisfy intrange and nolintlint for archive package"
```

## Report

- **Status:** DONE | DONE_WITH_CONCERNS | BLOCKED | NEEDS_CONTEXT
- What was edited
- Test results (3 pass)
- Whether golangci-lint was run (and result if so)
- 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 fix the lint failures in the extract.go file. Let me start by reading the file.

service_tier: standard

speed: standard

attributionAgent: general-purpose

attributionPlugin: superpowers

type: assistant


Read

type: direct


content:
1	// Package archive extracts gzipped tar archives from Crow into an
2	// in-memory file map. Diff and TUI layers consume the resulting Module
3	// type and never touch the network themselves.
4	package archive
5
6	import (
7		"archive/tar"
8		"bytes"
9		"compress/gzip"
10		"errors"
11		"fmt"
12		"io"
13	)
14
15	// Module is the in-memory representation of an extracted module tarball.
16	// Keys are forward-slash relative paths. Symlinks are not stored.
17	type Module struct {
18		Files map[string][]byte
19	}
20
21	var (
22		ErrTooLarge   = errors.New("archive exceeds size cap")
23		ErrUnsafePath = errors.New("archive contains unsafe path")
24	)
25
26	// Extract decompresses and untars tarball into a Module. If the
27	// cumulative uncompressed size exceeds maxBytes, Extract returns
28	// ErrTooLarge. Paths containing ".." or absolute roots are rejected with
29	// ErrUnsafePath. Symlinks are dropped silently (they are not useful
30	// inputs to a textual or semantic diff).
31	func Extract(tarball []byte, maxBytes int64) (Module, error) {
32		gz, err := gzip.NewReader(bytes.NewReader(tarball))
33		if err != nil {
34			return Module{}, fmt.Errorf("gzip: %w", err)
35		}
36		defer gz.Close()
37
38		tr := tar.NewReader(gz)
39		files := make(map[string][]byte)
40		var total int64
41		for {
42			hdr, err := tr.Next()
43			if errors.Is(err, io.EOF) {
44				break
45			}
46			if err != nil {
47				return Module{}, fmt.Errorf("tar: %w", err)
48			}
49			switch hdr.Typeflag {
50			case tar.TypeReg, tar.TypeRegA: //nolint:staticcheck
51				if err := safePath(hdr.Name); err != nil {
52					return Module{}, err
53				}
54				total += hdr.Size
55				if total > maxBytes {
56					return Module{}, ErrTooLarge
57				}
58				body := make([]byte, hdr.Size)
59				if _, err := io.ReadFull(tr, body); err != nil {
60					return Module{}, fmt.Errorf("reading %s: %w", hdr.Name, err)
61				}
62				files[hdr.Name] = body
63			default:
64				// Directories, symlinks, etc. ignored.
65			}
66		}
67		return Module{Files: files}, nil
68	}
69
70	func safePath(name string) error {
71		if name == "" {
72			return fmt.Errorf("%w: empty name", ErrUnsafePath)
73		}
74		if name[0] == '/' {
75			return fmt.Errorf("%w: absolute path %q", ErrUnsafePath, name)
76		}
77		// Reject any segment that is "..", or any path containing "..".
78		for i := 0; i < len(name); i++ {
79			if name[i] == '\\' {
80				return fmt.Errorf("%w: backslash in path %q", ErrUnsafePath, name)
81			}
82		}
83		if containsDotDot(name) {
84			return fmt.Errorf("%w: path traversal in %q", ErrUnsafePath, name)
85		}
86		return nil
87	}
88
89	func containsDotDot(p string) bool {
90		for i := 0; i < len(p); i++ {
91			if p[i] != '.' {
92				continue
93			}
94			// Check for ".." preceded by start-or-slash, followed by slash-or-end.
95			if i+1 < len(p) && p[i+1] == '.' {
96				startOK := i == 0 || p[i-1] == '/'
97				endOK := i+2 == len(p) || p[i+2] == '/'
98				if startOK && endOK {
99					return true
100				}
101			}
102		}
103		return false
104	}
105


text: Now I have the full picture. Let me apply all three fixes.


Edit

old_string: case tar.TypeReg, tar.TypeRegA: //nolint:staticcheck

new_string: case tar.TypeReg, tar.TypeRegA: //nolint:staticcheck // TypeRegA is the legacy '\x00' form of TypeReg still emitted by some older tar implementations


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


old_string:
	for i := 0; i < len(name); i++ {
		if name[i] == '\\' {

new_string:
	for i := range len(name) {
		if name[i] == '\\' {


new_string:
	for i := range len(p) {
		if p[i] != '.' {


text: Now run the tests and vet in parallel.


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


command: cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && go vet ./... 2>&1

description: Run go vet on all packages


content:
=== RUN   TestExtractHappyPath
--- PASS: TestExtractHappyPath (0.00s)
=== RUN   TestExtractEmptyArchive
--- PASS: TestExtractEmptyArchive (0.00s)
=== RUN   TestExtractMalformedGzip
--- PASS: TestExtractMalformedGzip (0.00s)
PASS
ok  	github.com/immuta/operations/apps/birdseye/internal/archive	1.608s


content: (Bash completed with no output)


text: Both checks pass. Now check for golangci-lint and commit.


command: which golangci-lint 2>&1 && golangci-lint run /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/internal/archive/... 2>&1 || echo "golangci-lint not found, skipping"

description: Check for golangci-lint and run if available


content:
/Users/steve.briggs/.local/share/mise/installs/golangci-lint/2.11.4/golangci-lint
level=error msg="[linters_context] typechecking error: pattern /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/internal/archive/...: directory prefix apps/birdseye/internal/archive does not contain main module or its selected dependencies"
0 issues.
golangci-lint not found, skipping


text: The pattern syntax doesn't work for absolute paths but the error just means it couldn't find the module root — let me run it from the correct directory.


command: golangci-lint run apps/birdseye/internal/archive/... 2>&1

description: Run golangci-lint from worktree root


toolUseResult:
Error: Exit code 7
level=error msg="[linters_context] typechecking error: pattern ./apps/birdseye/internal/archive/...: directory prefix apps/birdseye/internal/archive does not contain main module or its selected dependencies"
0 issues.


command: cd /Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye && golangci-lint run ./internal/archive/... 2>&1

description: Run golangci-lint from birdseye app module root


content: 0 issues.


text: Clean. Now commit.


command:
git add apps/birdseye/internal/archive/extract.go && git commit -m "$(cat <<'EOF'
style(birdseye): satisfy intrange and nolintlint for archive package

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
EOF
)"

description: Commit the lint fixes


content:
[worktree-birdseye 67e6e70] style(birdseye): satisfy intrange and nolintlint for archive package
 1 file changed, 3 insertions(+), 3 deletions(-)


text:
---

**Status: DONE**

**What was edited:** `/Users/steve.briggs/projects/operations/.claude/worktrees/birdseye/apps/birdseye/internal/archive/extract.go` — three changes:

1. `//nolint:staticcheck` on the `tar.TypeRegA` case now includes the required explanation comment.
2. `for i := 0; i < len(name); i++` in `safePath` converted to `for i := range len(name)`.
3. `for i := 0; i < len(p); i++` in `containsDotDot` converted to `for i := range len(p)`.

**Test results:** All 3 tests pass (`TestExtractHappyPath`, `TestExtractEmptyArchive`, `TestExtractMalformedGzip`) with race detector enabled.

**go vet:** Clean, no output.

**golangci-lint:** Run successfully from the module root (`apps/birdseye`) — 0 issues.

**Commit SHA:** `67e6e70`