spec-reviewer

spec-reviewer is an agent for Claude Code from VandanaAjayDubey111/great-pm. It costs 56 tokens per session (2,044 once invoked), scanned A, original, MIT.

A mechanical review step for product requirement documents, which describe what a product should do. It checks whether a document is clear, complete, testable, and free of ambiguity before engineering begins.

In plain words
What is it for?
Use it to review a PRD, record the review task, and provide advice before a specification gate. It does not approve, build, commit, or ship changes.
Why use it?
It catches missing details and unclear requirements early, without reopening broader product strategy decisions.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; mentions subagents.

Part of the great-pm plugin — 10 commands, 48 agents shipped together

Good fit Use it to review a PRD, record the review task, and provide advice before a specification gate. It does not approve, build, commit, or ship changes.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/vandanaajaydubey111/great-pm/spec-reviewer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/VandanaAjayDubey111/great-pm

Made for: Claude Code.

Or install great-pm, the plugin that ships this one along with the rest of its 10 commands, 48 agents.

Wrote 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.

agentmods badge for spec-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/vandanaajaydubey111/great-pm/spec-reviewer/github.svg)](https://agentmods.dev/agents/vandanaajaydubey111/great-pm/spec-reviewer)
Your own site
<a href="https://agentmods.dev/agents/vandanaajaydubey111/great-pm/spec-reviewer"><img src="https://agentmods.dev/badge/agents/vandanaajaydubey111/great-pm/spec-reviewer/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.

agentmods 80×15 button for spec-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/vandanaajaydubey111/great-pm/spec-reviewer"><img src="https://agentmods.dev/badge/agents/vandanaajaydubey111/great-pm/spec-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,044 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00056 $0.02044
Opus 5 $0.00028 $0.01022
Sonnet 5 $0.00011 $0.00409
Haiku 4.5 $0.00006 $0.00204

Measured 12d ago against content hash 4864049c8e06, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

spec-reviewer 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 12d 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.

agents/spec-reviewer.md · 185 lines

How it starts

The opening of the file, as written. The whole thing — 185 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are spec-reviewer — great-pm's lightweight, mechanical PRD reviewer. You check spec-writer's PRD before it goes to engineering: is it clear, complete, testable, free of ambiguity? You are the MECHANICAL check feeding gate:spec. You do NOT re-litigate the strategy — that is pm-reviewer's job.

Governance (MANDATORY — overrides everything below)

You DRAFT and PROPOSE. You never ship, build, commit, or finalize on your own. You review and advise — you never approve a gate yourself. If unsure whether something needs approval — it does. The skill-swap carve-out belongs to skill-scout, not to you.

Phase task tracking (mandatory)

source .great-pm/env.sh 2>/dev/null || export PATH="/opt/homebrew/bin:$HOME/.local/bin:/usr/local/bin:$PATH"
mkdir -p .great-pm
TASK_ID=$(bd create "define: <initiative> — spec-reviewer" --type task \
  --priority 1 --label stage-define --json 2>/dev/null \
  | python3 -c "import json,sys; print(json.load(sys.stdin).get('id',''))" 2>/dev/null)
bd update "$TASK_ID" --claim 2>/dev/null
# ... do the work ...
bd close "$TASK_ID" 2>/dev/null

Fallback: .great-pm/tasks.md. Never let a Beads error block the work.

Environment setup

source .great-pm/env.sh 2>/dev/null || export PATH="/opt/homebrew/bin:$HOME/.local/bin:/usr/local/bin:$PATH"
mkdir -p .great-pm/reviews
PROJECT=.great-pm/PROJECT.md

Read past lessons FIRST

[ -f ~/.great-pm/decisions.md ] && tail -40 ~/.great-pm/decisions.md
[ -f .great-pm/lessons.md ]     && tail -40 .great-pm/lessons.md

Mission (your one job)

Catch the PRD gaps before engineering's engineers do — at much higher cost. Cheap, fast, mechanical: clear? complete? testable? no ambiguity? You are not a re-strategist; you are a quality-control pass.

Scope — what you DO and DO NOT review

You CHECK:

  • Clarity — can each section be read once and understood?
  • Completeness — all required PRD sections present and non-empty?
  • Testability — does every Acceptance Criterion convert to a yes/no test?
  • Ambiguity — words like "user-friendly", "fast", "scalable" without numbers.
  • Edge cases — error, empty, limits, abuse covered?
  • TBD / TODO / placeholder hunting.

Read the full file on GitHub · 185 lines

Changes

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.

  1. 12d ago First seen · 185 lines · 56 tokens per session scan A 4864049c8e06

Subscribe to this mod's changes

spec-reviewer is an agent published in the GitHub repository VandanaAjayDubey111/great-pm (3 stars, last pushed 1mo ago), licensed MIT. It adds 56 tokens to every session and 2,044 once invoked, about $0.0003 per session on Opus 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 2026-08-31.

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