Code Assessment Report — 001

Current Stamp Version: v0.18.1 Date: 2026-07-18 Scope: stamp codebase (95 files, 53 Go source files, 3 Bash scripts) Quality Signal: 6659/10000 Unit Test Coverage: 91.5%

1. Quality Metrics

Dimension	Score	Assessment
Depth	1.0	Excellent — max call chain is 2
Modularity	0.979	High — good package separation
Redundancy	0.993	Excellent — 3 dead init() functions (all required)
Coverage discipline	1.0	No skip-test annotations
Equality (Gini)	0.426	Poor — extreme god-file inequality
Acyclicity	0.316	Poor — 171 dependency cycle edges

God file outliers (Gini = 0.7089)

File	Lines	Complexity	% of max
`internal/manager/manager_test.go`	1347	172	100%
`internal/manager/apt.go`	328	136	79%
`internal/manager/dnf.go`	348	128	74%
`internal/cli/cmd_test.go`	827	117	68%
`internal/cli/selfupdate.go`	297	110	64%

2. Correctness

Critical

internal/manager/manager_test.go — 1347 lines, three adapter test tables (DNF/Brew/Flatpak, ~880 lines) have cyclomatic complexity=32 and zero meta-test coverage. Test data quality directly protects production code.
internal/cli/reconcile.go — newReconcileCmd (170 lines, complexity 24, risk=342) has no test coverage. Core drift detection logic.

Required

internal/cli/restore.go — newRestoreCmd (169 lines, complexity 21, risk=232) untested. Concurrent package install logic.
internal/cli/doctor.go — newDoctorCmd (173 lines, complexity 20, risk=263) untested.
internal/manager/dnf.go:sudoCmd — TTY vs non-TTY branch untested (fan_in=16, risk=294).

3. Architecture

171 dependency cycle edges — manager→cli→state circular references, likely test-only. Investigate and reduce.
God file: internal/manager/manager_test.go (1347 lines) — exceeds 1000 line healthy boundary. Split into per-adapter test files.
internal/cli/cmd_test.go couples to 46 files — expected for integration test helper, but worth reviewing.
Package structure follows standard Go conventions with clean boundaries:
- internal/cli/ — Cobra command definitions (32 files)
- internal/manager/ — Package manager adapters (11 files)
- internal/manifest/ — TOML manifest (3 files)
- internal/state/ — Snapshot/diff engine (2 files)

4. Security

Aspect	Status	Details
Command injection	✓ No issues	All shell commands use `exec.Command` with separate args
Input validation	✓ Thorough	`ValidatePackageName`, `validateRepoName`, `validateRepoURL` sanitize all inputs
HTTP client	✓ Hardened	30s timeout, HTTPS only, no `InsecureSkipVerify`
Download integrity	✓ Verified	SHA-256 checksum verification against `checksums.txt`
Archive extraction	✓ Protected	Tar-slip mitigation via `filepath.Base` sanitization
Secrets in codebase	✓ None found	No hardcoded credentials, tokens, or API keys
Sudo gating	✓ TTY-aware	`sudoCmd` adds `-n` in non-interactive mode to prevent hangs

5. Performance

Aspect	Status	Details
Concurrency	✓ Appropriate	`sync.WaitGroup` in update, `errgroup.Group` in restore
Cancellation	✓ Wired	`context.Context` propagated through all exec calls
File writes	✓ Atomic	Temp file + rename pattern for completions, manifest, snapshots
N+1 patterns	✓ None detected	—
Unbounded operations	✓ None detected	—
HTTP timeouts	✓ 30s	Configured client, not `http.DefaultClient`

6. Documentation & Structure

Aspect	Status	Details
ADRs	✓ 7 decisions	From snapshot diffing to NO_COLOR compliance
SPEC.md	✓ 398 lines	Full command specs, data model, boundaries
IMPLEMENTATION_PLAN.md	✓ 345 lines	34 tasks tracked across 6 phases
Usage docs	✓ 23 files	Auto-generated via `task docs`
Man pages	✓ Auto-generated	`stamp man install` generates system man page
README.md	✓ Modern	SVG logo with dark/light mode, centered badges
CONTRIBUTING.md	✓ Current	All task commands documented
CI/CD	✓ Full pipeline	Lint, test, security, auto-tag, goreleaser, 3 integration badges

Docs structure

docs/
  FEATURE_MATRIX.md           Feature completion tracking
  IMPLEMENTATION_PLAN.md      Task breakdown by phase
  SPEC.md                     Full technical specification
  VISION.md                   Project vision
  assessments/                Assessment reports (this file)
  decisions/                  7 ADRs
  man/                        Man pages (auto-generated)
  media/                      Logos, ASCII art backup
  usage/                      23 CLI usage documents (auto-generated)

7. Test Coverage by Package

Package	Coverage	Status
`cmd/stamp`	100.0%	✓
`internal/cli`	91.6%	✓ Above 90%
`internal/manager`	90.4%	✓ Above 90%
`internal/manifest`	95.3%	✓
`internal/state`	93.8%	✓
`tools/docgen`	63.6%	⚠ Below 90% (utility tool)
Overall	91.5%	✓ Above 90% threshold

8. Top Risks (Untested, High Complexity)

Rank	Function	File	Complexity	Risk
1	`newReconcileCmd`	reconcile.go	24	342
2	`sudoCmd`	dnf.go	4	294 (fan_in=16)
3	`newDoctorCmd`	doctor.go	20	263
4	`newRestoreCmd`	restore.go	21	232
5	`ResolveManager`	manager.go	5	199 (fan_in=9)
6	`newInfoCmd`	info.go	19	192
7	`installCompletion`	completion.go	15	188
8	`newRemoveCmd`	install.go	13	171
9	`newSelfUpdateCmd`	selfupdate.go	21	139
10	`newRepoAddCmd`	repo.go	9	129

9. Dependency Discipline

Aspect	Status	Details
External dependencies	✓ Minimal	Only `cobra`, `go-toml/v2`, `testify` (test only)
Dependency injection	✓ Interface-driven	`Adapter` interface with mocks for all tests
Version management	✓ Go modules	`go mod tidy` enforced in CI
Vulnerability scanning	✓ govulncheck	Runs in CI (`task security`)

10. Recommended Actions

Priority	Action	Files
P0	Split `manager_test.go` into per-adapter test files	`dnf_test.go`, `brew_test.go`, `flatpak_test.go`
P0	Add test coverage for `newReconcileCmd`	`internal/cli/reconcile.go`
P1	Add test coverage for `newRestoreCmd`	`internal/cli/restore.go`
P1	Add test coverage for `newDoctorCmd`	`internal/cli/doctor.go`
P2	Add test coverage for `sudoCmd` TTY/non-TTY branch	`internal/manager/dnf.go`
P2	Investigate and reduce 171 dependency cycle edges	`internal/manager`, `internal/cli`
P3	Push `tools/docgen` coverage above 63.6%	`tools/docgen/main.go`

11. Historical Comparison

Assessment	Date	Quality Signal	Total Coverage	Notes
001	2026-07-18	6659	91.5%	Initial assessment