autospec: Skill for Claude Code

.agents/skills/autospec-checklist/SKILL.md

autospec-checklist is a skill for Claude Code from ariel-frischer/autospec. It costs 13 tokens per session (2,092 once invoked), scanned A, original, MIT.

A tool that creates a YAML checklist for reviewing the quality of feature requirements. YAML is a human-readable format for structured text, and requirements describe what a product or feature must do.

In plain words
What is it for?
Use it to review feature specifications in a project’s specs directory and generate questions covering completeness, clarity, consistency, and coverage.
Why use it?
It helps find requirements that are incomplete, unclear, inconsistent, or missing accessibility coverage before implementation begins. It checks the wording of the requirements rather than whether the software works.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: installed under .agents/ (shared by several agents); $skill-name invocation.

This is ariel-frischer/autospec's own configuration. It tells Claude Code how to work on autospec itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything autospec configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ariel-frischer/autospec. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ariel-frischer/autospec/main/.agents/skills/autospec-checklist/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ariel-frischer/autospec

Made for: Claude Code.

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 autospec-checklist

README.md
[![agentmods](https://agentmods.dev/badge/skills/ariel-frischer/autospec/autospec-checklist/github.svg)](https://agentmods.dev/skills/ariel-frischer/autospec/autospec-checklist)
Your own site
<a href="https://agentmods.dev/skills/ariel-frischer/autospec/autospec-checklist"><img src="https://agentmods.dev/badge/skills/ariel-frischer/autospec/autospec-checklist/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 autospec-checklist

Your own site · 80×15
<a href="https://agentmods.dev/skills/ariel-frischer/autospec/autospec-checklist"><img src="https://agentmods.dev/badge/skills/ariel-frischer/autospec/autospec-checklist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,092 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00013 $0.02092
Opus 5 $0.00006 $0.01046
Sonnet 5 $0.00003 $0.00418
Haiku 4.5 $0.00001 $0.00209

Measured 11d ago against content hash e1e3a8b47a1a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

autospec-checklist 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 11d 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/skills/autospec-checklist/SKILL.md · 236 lines

How it starts

The opening of the file, as written. The whole thing — 236 lines — stays where its author put it; the contents beside it link to each section on GitHub.

autospec-checklist

This Agent Skill is generated from autospec.checklist. When the user invokes "$autospec-checklist" or "/autospec.checklist", load and follow these instructions directly. Treat the text after the skill or command name as "$ARGUMENTS". Do not route back through "autospec checklist"; this skill is the prompt for the stage.

Project specs directory: ./specs

Checklist Purpose: "Unit Tests for English"

CRITICAL CONCEPT: Checklists are UNIT TESTS FOR REQUIREMENTS WRITING - they validate the quality, clarity, and completeness of requirements in a given domain.

NOT for verification/testing:

  • NOT "Verify the button clicks correctly"
  • NOT "Test error handling works"
  • NOT "Confirm the API returns 200"
  • NOT checking if code/implementation matches the spec

FOR requirements quality validation:

  • "Are visual hierarchy requirements defined for all card types?" (completeness)
  • "Is 'prominent display' quantified with specific sizing/positioning?" (clarity)
  • "Are hover state requirements consistent across all interactive elements?" (consistency)
  • "Are accessibility requirements defined for keyboard navigation?" (coverage)
  • "Does the spec define what happens when logo image fails to load?" (edge cases)

Metaphor: If your spec is code written in English, the checklist is its unit test suite. You're testing whether the requirements are well-written, complete, unambiguous, and ready for implementation - NOT whether the implementation works.

User Input

$ARGUMENTS

You MUST consider the user input before proceeding (if not empty).

Pre-computed Context

The following paths have been pre-computed and are available for use:

  • FEATURE_DIR: {{.FeatureDir}}
  • FEATURE_SPEC: {{.FeatureSpec}}

Execution Steps

  1. Clarify intent (dynamic): Derive up to THREE initial contextual clarifying questions. They MUST:
    • Be generated from the user's phrasing + extracted signals from spec/plan/tasks
    • Only ask about information that materially changes checklist content
    • Be skipped individually if already unambiguous in $ARGUMENTS
    • Prefer precision over breadth

Read the full file on GitHub · 236 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. 11d ago First seen · 236 lines · 13 tokens per session scan A e1e3a8b47a1a

Subscribe to this mod's changes

autospec-checklist is a skill published in the GitHub repository ariel-frischer/autospec (141 stars, last pushed 1mo ago), licensed MIT. It adds 13 tokens to every session and 2,092 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.