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Agent skill

Enforce First

by danielvm-git in danielvm-git/bigpowers

Apply the F.I.R.S.T test quality rubric (per CONVENTIONS.md §Tests) to a test suite or individual tests.

MITAuto-check passedEducation

Install Enforce First

skills CLI
$ npx skills add danielvm-git/bigpowers --skill enforce-first -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install danielvm-git/bigpowers enforce-first --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/danielvm-git/bigpowers.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/enforce-first .claude/skills/enforce-first && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
enforce-first
GitHub stars
257
Token cost
~463 tokens
SKILL.md length
192 words
Files
1
Skills in repo
39
Repo updated
First seen
Licence
MIT

At a glance

Apply the F.I.R.S.T test quality rubric (per CONVENTIONS.md §Tests) to a test suite or individual tests.

  • Works in 4 steps: Identify which tests violate it → Describe the fix → Apply the fix → …
  • Develop-tdd is writing tests
  • SKILL.md covers Modes, The F.I.R.S.T Rubric, Applying the rubric and Verify
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Enforce First is an agent skill from danielvm-git/bigpowers. Apply the F.I.R.S.T test quality rubric (per CONVENTIONS.md §Tests) to a test suite or individual tests. Use when develop-tdd is writing tests, when test quality needs to be checked, or when user mentions F.I.R.S.T or "test quality".

Its SKILL.md is about 460 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Education, covering Quizzes and assessments, Test generation and Test-driven development. The repository describes itself as: Agent skills synthesizing years of software engineering discipline into a prescriptive methodology for solo developers. The licence is MIT.

When your agent uses it

  • Develop-tdd is writing tests
  • Test quality needs to be checked
  • User mentions F.I.R.S.T

Example prompts

  • “test quality”
  • “/enforce-first”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Identify which tests violate it
  2. Describe the fix
  3. Apply the fix
  4. Re-run the suite to confirm it still passes

What it can do on your machine

Read from SKILL.md and the folder at commit 812d57a. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Enforce First loads about 463 tokens when it runs. Until then it costs about 62 tokens; SKILL.md has 192 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~62
When it runs · the whole SKILL.md, loaded when a task matches
~463

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from danielvm-git/bigpowers at commit 812d57a, republished under its MIT licence (© danielvm-git). 192 words, ~463 tokens.

Download SKILL.mdSave it as .claude/skills/enforce-first/SKILL.md (or your agent's skills folder).
name
enforce-first
description
Apply the F.I.R.S.T test quality rubric (per CONVENTIONS.md §Tests) to a test suite or individual tests. Use when develop-tdd is writing tests, when test quality needs to be checked, or when user mentions F.I.R.S.T or "test quality".
model
haiku
effort
standard

Enforce FIRST

HARD GATE — HARD GATE — Before shipping, ALL enforcement checks must pass: lint, typecheck, tests, coverage gates. Do NOT disable or skip checks to get to green.

Apply the F.I.R.S.T rubric per CONVENTIONS.md §Tests to evaluate and improve tests.

This skill is typically invoked internally by develop-tdd during the test-writing phase. It can also be run standalone on an existing test suite.

Modes

  • Default: full F.I.R.S.T audit (all 5 criteria)
  • --quick: Check Fast, Independent, and Self-Validating criteria only (per CONVENTIONS.md §Tests). Used by build-epic step 6 as a mechanical gate after audit-code. Skips Repeatable and Timely which require contextual judgment.

The F.I.R.S.T Rubric

See CONVENTIONS.md §Tests for the canonical F.I.R.S.T rubric definition, checklists, and fix patterns.

Mechanical self-check (runs before reporting audit complete):

bash
grep -q '## Tests (F.I.R.S.T' CONVENTIONS.md
grep -qE 'Fast|Independent|Repeatable|Self-Validating|Timely' CONVENTIONS.md

Each criterion must be explicitly addressed in the audit report with pass/fail per test file reviewed.

Applying the rubric

For each failing criterion:

  1. Identify which tests violate it
  2. Describe the fix
  3. Apply the fix
  4. Re-run the suite to confirm it still passes

Report: "F.I.R.S.T audit complete. X criteria passed, Y fixed."

Verify

→ verify: grep -q '## Tests (F.I.R.S.T' CONVENTIONS.md && grep -qE 'Self-Validating|Repeatable' skills/enforce-first/SKILL.md && echo OK

© danielvm-git, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/enforce-first of danielvm-git/bigpowers.

Open the folder on GitHubat commit 812d57a

Compare with similar skills

Enforce First next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Enforce First compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Enforce First this skilldanielvm-git/bigpowers257—~463Automated safety check: PassMIT
Building Screening Rubricswentorai/Research-Claw8583 repos~4.5kAutomated safety check: PassCustom licence
Agentic Evalgithub/awesome-copilot40k4 repos~1.5kAutomated safety check: PassMIT
Suede AI EvalJasonColapietro/suede-creator-skills127—~3.3kAutomated safety check: PassMIT
Prompt LabMathews-Tom/armory328—~2.1kAutomated safety check: PassMIT
Evaluationguanyang/open-agent-hub9752 repos~4.2kAutomated safety check: PassMIT

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Categories

Questions about Enforce First

What does Enforce First do?

Apply the F.I.R.S.T test quality rubric (per CONVENTIONS.md §Tests) to a test suite or individual tests. Enforce First is an agent skill from danielvm-git/bigpowers.md §Tests) to a test suite or individual tests.

When should I use Enforce First?

Enforce First fits situations like: develop-tdd is writing tests; test quality needs to be checked; user mentions F.I.R.S.T.

How do I install Enforce First in Claude Code?

Run `npx skills add danielvm-git/bigpowers --skill enforce-first -a claude-code`. Or copy the skill folder (skills/enforce-first in danielvm-git/bigpowers) into .claude/skills/enforce-first in your project. Claude Code loads it when a task matches its description.

How do I install Enforce First in Codex?

Run `npx skills add danielvm-git/bigpowers --skill enforce-first -a codex`. Or copy the skill folder (skills/enforce-first in danielvm-git/bigpowers) into .agents/skills/enforce-first in your project. Codex loads it when a task matches its description.

Can I use Enforce First in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add danielvm-git/bigpowers --skill enforce-first -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/enforce-first, .gemini/skills/enforce-first, .github/skills/enforce-first and .opencode/skills/enforce-first in your project.

What does Enforce First need to run?

SKILL.md names no scripts, command-line tools or credentials: Enforce First is instructions for the agent only.

Does Enforce First access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Enforce First safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Enforce First use?

Enforce First is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Enforce First use?

About 463 tokens (SKILL.md is roughly 1.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Enforce First?

Skills that share tags, products or a category with Enforce First: Building Screening Rubrics (wentorai/Research-Claw, 858 stars), Agentic Eval (github/awesome-copilot, 40k stars), Suede AI Eval (JasonColapietro/suede-creator-skills, 127 stars) and Prompt Lab (Mathews-Tom/armory, 328 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Enforce First?

danielvm-git (a GitHub user) maintains it in danielvm-git/bigpowers, which has 257 GitHub stars. The repository holds 39 skills in this directory. The repository was last updated on September 21, 2026.

Source: danielvm-git/bigpowers on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.