Borrowing it
Nothing to install: this file belongs to jnarowski/agentcmd. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/jnarowski/agentcmd/main/.claude/commands/cmd/review-spec-implementation.mdgit clone --depth 1 https://github.com/jnarowski/agentcmdWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/commands/jnarowski/agentcmd/review-spec-implementation)<a href="https://agentmods.dev/commands/jnarowski/agentcmd/review-spec-implementation"><img src="https://agentmods.dev/badge/commands/jnarowski/agentcmd/review-spec-implementation/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/jnarowski/agentcmd/review-spec-implementation"><img src="https://agentmods.dev/badge/commands/jnarowski/agentcmd/review-spec-implementation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00009 | $0.03740 |
| Opus 5.5 | $0.00004 | $0.01496 |
| Sonnet 5.5 | $0.00002 | $0.00748 |
| Haiku 4.5 | $0.00001 | $0.00374 |
Grade A, and why
review-spec-implementation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 411 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Review Spec Implementation
Reviews a previous agent's implementation work by comparing the provided spec file against actual code changes. Identifies discrepancies and documents all findings in a Review Findings section appended to the spec. The documented issues can then be addressed by running /cmd:implement-spec on the updated spec file.
Variables
- $specIdOrNameOrPath: $1 (required) - Either a timestamp ID (e.g.,
251024120101), feature name (e.g.,workflow-safety), or full path - $format: $2 (optional) - Output format: "text" or "json" (defaults to "text" if not provided)
- $max-reviews: 3 - This is a constant (maximum review iterations allowed)
Spec File Resolution
Parse and resolve $specIdOrNameOrPath:
- If it's a full path (contains
/): use as-is - Otherwise, look up in
.agent/specs/index.json:- For timestamp ID: Match by
idfield - For feature name: Fuzzy match path (e.g.,
message-queuematchestodo/251024120101-message-queue-implementation/spec.md) - Use path from index:
.agent/specs/{path}
- For timestamp ID: Match by
- If not found in index.json, fallback to directory search:
- Search in order: backlog/, todo/, done/
- For ID: Pattern
{id}-*/spec.md - For feature name: Pattern
*{feature-name}*/spec.md(fuzzy match)
- If still not found: stop and report error
Instructions
- REVIEW ONLY - This command does not implement fixes
- Evidence-based - Every finding must cite file:line and quote spec requirements
- Priority-focused - Only document HIGH and MEDIUM priority issues (see guidelines below)
- Pragmatic mindset - Ask "would this block a PR merge?" not "could this be better?"
- Project standards - Check
.agent/docs/code-review-standards.mdfor detailed review methodology. If that file is missing, look for best practices in CLAUDE.MD - Maximum Iterations: Reviews stop automatically after 3 iterations
- Act as a professional code auditor, not a nitpicking perfectionist
- If $format is not provided, default to "text"
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 411 lines · 9 tokens per session scan A 049ec18d5672
review-spec-implementation is a command published in the GitHub repository jnarowski/agentcmd (18 stars, last pushed 10mo ago), licensed MIT. It adds 9 tokens to every session and 3,740 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.
review-spec-implementation compared with commands from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| review-spec-implementationjnarowski/agentcmd | Command | 18 | 10mo ago | MIT | A | 9 | Claude Code |
| diff-reviewcoco-research/coco | Command | 785 | yesterday | Apache-2.0 | A | 11 | Claude Code |
| review-branchdamusix/atomic-claude | Command | 115 | 5d ago | MIT | A | 35 | Claude Code |
| refactorRchGrav/claudebox | Command | 1.2k | 1mo ago | MIT | A | 9 | Claude Code |
| spec-trace-requirementsrjmurillo/ai-agents | Command | 49 | yesterday | MIT | A | 0 | GitHub Copilot |
| merge-conflict-analysisrjmurillo/ai-agents | Command | 49 | yesterday | MIT | A | 0 | GitHub Copilot |
| initazrtydxb/procoder | Command | 211 | 11d ago | Apache-2.0 | A | 16 | Claude Code |