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DockerComms v1.0 Audit Report

Audit of implementation against the master prompt and specification.

Compliance Summary

Category Status Notes
Security (verify-before-materialize) PASS Temp file, fsync, atomic rename
Path traversal defense PASS SanitizeFilename, basename only
Tag grammar PASS Matches SPEC.md
Empty descriptor PASS Canonical digest
Chunk format PASS chunk_N.bin, annotations
Discovery (tag + referrers fallback) PASS Implemented
Exit codes PASS 0-5 per contract
oras-go version PASS oras-go/v2 (stable production line per locked doctrine)
No emojis PASS None in code/docs
No TODO comments PASS None

Gaps vs Master Prompt

Critical (Fix)

  1. os.Exit outside main: CLI handlers call os.Exit. Master prompt: "os.Exit() outside main()" prohibited. Fix: return ExitError type, handle in main.

  2. Ignored errors (_ = ): MarkFlagRequired, unused vars. Fix: handle or remove.

  3. Constant-time digest comparison: Not used. sigstore-go does internal verification; add for any manual digest checks.

Medium (Add)

  1. License headers: No SPDX headers in source files. Add to each .go file.

  2. golangci-lint config: Missing .golangci.yml. Add with gosec, staticcheck, errcheck.

  3. CHANGELOG.md: Missing. Add with v1.0.0 entry.

  4. Package doc comments: Some packages lack package-level docs.

Low (Optional per Spec)

  1. watch, gc commands: Master prompt lists them; SPEC says optional. Not implemented.

  2. internal/version: Master prompt lists it. Not implemented.

  3. Viper config: Master prompt says "NO defaults in code"; we use flag defaults. Config is minimal.

  4. 100% test coverage: Not achieved for crypto, OCI, chunking.

File Structure Comparison

Master Prompt Our Implementation
pkg/oci/chunk.go pkg/transfer/chunker.go
pkg/oci/discovery.go In oci/client.go, transfer/recv.go
pkg/crypto/sign.go In transfer/send.go (cosign exec)
pkg/crypto/policy.go Not implemented (policy via flags)
internal/gc Not implemented (optional)
internal/version Not implemented
cmd/dockercomms/commands/*.go pkg/cli/*.go

Recommendations

  1. DONE: Refactor CLI to return ExitError; main() is sole os.Exit caller.
  2. DONE: Add .golangci.yml and run in CI.
  3. DONE: Add license headers to all source files.
  4. Handle MarkFlagRequired errors (log or fail init).
  5. Add constant-time comparison in crypto path if we ever compare digests manually.
  6. DONE: Create CHANGELOG.md for release tracking.
  7. errcheck disabled in golangci; 21 defer Close/best-effort cases to address (named returns or nolint).