spec-quality-check

spec-quality-check is a skill for Claude Code from shrekshrek/project-workflow. It costs 42 tokens per session (262 once invoked), scanned A, original, MIT.

A pre-implementation review skill for checking whether a proposed or accepted feature specification is complete, consistent, and ready to build. It reconciles requirements and reports a readiness decision.

In plain words
What is it for?
Use it as a quality gate on an active feature record before coding, to identify blocking issues and determine the next action.
Why use it?
It catches unclear or conflicting requirements before implementation begins. It also applies the relevant status and handoff rules without changing the specification itself.

Skill for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the project-workflow plugin — 9 skills, 6 agents shipped together

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add shrekshrek/project-workflow
Claude Code
/plugin install project-workflow

Made for: Claude Code.

Or install project-workflow, the plugin that ships this one along with the rest of its 9 skills, 6 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-quality-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/shrekshrek/project-workflow/spec-quality-check.svg)](https://agentmods.dev/skills/shrekshrek/project-workflow/spec-quality-check)
Your own site
<a href="https://agentmods.dev/skills/shrekshrek/project-workflow/spec-quality-check"><img src="https://agentmods.dev/badge/skills/shrekshrek/project-workflow/spec-quality-check.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 262 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 5.1 $0.00042 $0.00262
Opus 5 $0.00021 $0.00131
Sonnet 5 $0.00008 $0.00052
Haiku 4.5 $0.00004 $0.00026

Measured 5d ago against content hash 474ec4fe09d6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

spec-quality-check 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 5d 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.

adapters/claude/skills/spec-quality-check/SKILL.md · 20 lines

What it actually says

Spec Quality Check

Match the user's language. Read ${CLAUDE_PLUGIN_ROOT}/docs/actions/spec-quality-check.md completely before reviewing. Use the canonical semantic method in the current conversation; an applicable independent reviewer reads its own role contract.

Claude execution details:

  • Resolve $ARGUMENTS using the shared active-feature rules; exclude archive/. Read the actual record and relevant optional attachments.
  • Perform the canonical readiness and requirements-reconciliation checks. Read the relevant method from ${CLAUDE_PLUGIN_ROOT}/docs/reviewers/spec-quality-reviewer.md for this semantic work.
  • Only when the canonical independent-review boundary applies, dispatch a fresh spec-quality-reviewer with the necessary decision sources and affected record under the shared execution contract.
  • Apply the canonical verdict, status, and implementation-handoff rules; never repair artifact content or commit. Report the canonical reconciliation and verdict compactly, plus blocking findings, any status transition, and the next action. Do not add an adapter-specific report schema or narrate every ordinary pass.
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. 5d ago First seen · 20 lines · 42 tokens per session scan A 474ec4fe09d6

Subscribe to this mod's changes

spec-quality-check is a skill published in the GitHub repository shrekshrek/project-workflow (2 stars, last pushed 2d ago), licensed MIT. It adds 42 tokens to every session and 262 once invoked, about $0.0002 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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