spec-reviewer

spec-reviewer is an agent for coding agents from Dowwie/tasker. It costs 29 tokens per session (2,748 once invoked), scanned A, original, Apache-2.0.

An automated reviewer for software specifications, which are written descriptions of what a project should do. It is the seventh phase of the /specify workflow and finds weaknesses before the specification is exported.

In plain words
What is it for?
Analyzing specifications, verifying review checklists, recording detected weaknesses, collecting resolutions, and acting as a quality gate before export or planning.
Why use it?
It provides a final review for missing or weak parts of a specification and records issues and user decisions in JSON files. It can also review a specification before /plan breaks it into tasks.

Agent

Part of the tasker plugin — 6 skills, 8 commands, 8 agents, 3 hooks shipped together

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.

agentmods
npx agentmods add agents/dowwie/tasker/spec-reviewer
Clone the repo
git clone --depth 1 https://github.com/Dowwie/tasker

Or install tasker, the plugin that ships this one along with the rest of its 6 skills, 8 commands, 8 agents, 3 hooks.

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/dowwie/tasker/spec-reviewer.svg)](https://agentmods.dev/agents/dowwie/tasker/spec-reviewer)
Your own site
<a href="https://agentmods.dev/agents/dowwie/tasker/spec-reviewer"><img src="https://agentmods.dev/badge/agents/dowwie/tasker/spec-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,748 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00029 $0.02748
Opus 5 $0.00015 $0.01374
Sonnet 5 $0.00006 $0.00550
Haiku 4.5 $0.00003 $0.00275

Measured 3d ago against content hash 925134f17dbe, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 3d 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 · 373 lines

How it starts

The opening of the file, as written. The whole thing — 373 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Spec Reviewer (Phase 7 of /specify)

Analyze specification for weakness categories before export. Persist weaknesses and engage user for resolution.

Integration with /specify Workflow

This agent implements Phase 7 (Spec Review) of the /specify skill workflow:

Scope → Clarify → Synthesis → Architecture → Decisions → Gate → Spec Review → Export

The spec-reviewer runs after the handoff-ready gate passes and before final export. It provides automated weakness detection as the final quality gate.

Also Used By /plan

If a user runs /plan with a spec that hasn't been through /specify, the orchestrator invokes this agent to review the spec before task decomposition. When /specify artifacts exist (.claude/spec-review.json), this phase is skipped.


Output Contract

You MUST produce two artifacts:

  1. {TASKER_DIR}/artifacts/spec-review.json - Detected weaknesses
  2. {TASKER_DIR}/artifacts/spec-resolutions.json - User resolutions

Protocol

Step 1: Analyze Spec

Run the weakness detection and checklist verification:

tasker spec review analyze {TASKER_DIR}/inputs/spec.md > {TASKER_DIR}/artifacts/spec-review.json

This outputs JSON with:

  • Detected weaknesses (W1-W7 categories)
  • Checklist verification results (C1-C11 categories)
  • Critical checklist gaps converted to CK-* weaknesses
  • Ambiguity detections with generated clarifying questions

Step 2: Review Checklist Status

View the completeness checklist:

tasker spec review checklist {TASKER_DIR}

This shows which spec areas are complete, partial, or missing.

Step 3: Review Weaknesses

List unresolved critical items:

tasker spec review unresolved {TASKER_DIR}

Categorize by severity:

  • Critical: Contradictions (W6), Non-behavioral (W1), Ambiguity with weak requirements (W7), Checklist gaps (CK-C2/C3/C4/C7) - MUST be resolved
  • Warning: Implicit (W2), Cross-cutting (W3), Fragmented (W5), Ambiguity with vague terms (W7) - proceed with notes
  • Info: Missing AC (W4) - logged only

Read the full file on GitHub · 373 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. 3d ago First seen · 373 lines · 29 tokens per session scan A 925134f17dbe

Subscribe to this mod's changes

spec-reviewer is an agent published in the GitHub repository Dowwie/tasker (19 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 29 tokens to every session and 2,748 once invoked, about $0.0001 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 2026-08-30.