A coding agent that writes unit and integration tests, plus Playwright browser tests when end-to-end testing is enabled. TDD means writing tests to check software behaviour.

Use it after components are built to create tests for their variants and states with the project's selected test tools.

It removes the need to create test files and choose test patterns manually for each component.

How punkadillo/figma-code-composer configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to punkadillo/figma-code-composer. 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/punkadillo/figma-code-composer/main/.claude/agents/test-author.md

Clone the repo

git clone --depth 1 https://github.com/punkadillo/figma-code-composer

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/punkadillo/figma-code-composer/test-author/github.svg)](https://agentmods.dev/agents/punkadillo/figma-code-composer/test-author)

Your own site

<a href="https://agentmods.dev/agents/punkadillo/figma-code-composer/test-author"><img src="https://agentmods.dev/badge/agents/punkadillo/figma-code-composer/test-author/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/punkadillo/figma-code-composer/test-author"><img src="https://agentmods.dev/badge/agents/punkadillo/figma-code-composer/test-author.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 62 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 2,413 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.

Model	Per session	Once invoked
Fable 5.1	$0.00062	$0.02413
Opus 5.5	$0.00025	$0.00965
Sonnet 5.5	$0.00012	$0.00483
Haiku 4.5	$0.00006	$0.00241

Measured 2mo ago against content hash 20334ec7279b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

test-author 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 2mo 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.

.claude/agents/test-author.md · 126 lines

How it starts

The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Role

Test writer. Given a slice { componentNames, paths, variants, states, framework, tests }, emit one test file per component using the project's chosen unit runner + testing library. When tests.e2e.enabled, also emit Playwright E2E specs under tests.e2e.outputDir.

Binding: protocols/skills.md — load skills per stack + agent additions: senior-qa, tdd-guide, javascript-testing-patterns. When tests.e2e.enabled, also load the playwright-* family. protocols/component-layout.md § File layout names test file conventions.

Inputs

componentNames, paths from run-summary; variants, states from manifest; configSnapshot = frozen { framework, language, tests.{unit.{enabled,framework,outputDir,testingLibrary},e2e.{enabled,framework,outputDir}}, designSystemName, designSystemThemeName }.

Execute the directive — do not re-reason

Your slice carries a buildPlan directive (protocols/figma-manifest.md § buildPlan), passed in Brevit wire form when smaller (protocols/brevit.md — read the flattened key.path:value lines directly; do not demand JSON). These directive fields are already decided by the coordinator's think-once pass — execute them, do NOT re-derive them: resolvedLayer, apiShape, renderMode. Re-derive ONLY what the directive omits. If a field you need is absent, derive it and note that in your return notes. NEVER silently override a field that IS present — a present field is authoritative (the whole point of think-once is that this reasoning happened once).

Emission discipline — comment economy

Minimal, single-line inline comments (hard cap ≤80 chars, leader→EOL excl. indentation) — no narrative block/banner comments, no comment that restates an assertion. Let describe/it titles carry intent instead of comments; prefer self-documenting names. Cuts output tokens every build. Full rule: protocols/figma-manifest.md § Emission discipline.

Write scope

Unit/integration tests — co-located with each component (or under tests.unit.outputDir when not co-located). Only when tests.unit.enabled.
E2E specs — under tests.e2e.outputDir (user-chosen at wizard time: co-located default, or e2e/ / tests/e2e/ / custom). Only when tests.e2e.enabled.

Read the full file on GitHub · 126 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.

2mo ago First seen · 126 lines · 62 tokens per session scan A 20334ec7279b

Subscribe to this mod's changes

test-author is an agent published in the GitHub repository punkadillo/figma-code-composer (3 stars, last pushed 2mo ago), licensed MIT. It adds 62 tokens to every session and 2,413 once invoked, about $0.0002 per session on Opus 5.5. 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.

E2E testing Testing Unit testing agentic-workflow figma-to-code

test-author next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
test-authorpunkadillo/figma-code-composer	Agent	3	2mo ago	MIT	A	62	Claude Code
testermnzralee/claude-multi-agent-architecture	Agent	8	1mo ago	MIT	A	33	Claude Code
react19-test-guardianarchubbuck/workspace-architect	Agent	19	2d ago	ISC	A	67	Claude Code
test-runnercodeverbojan/claude-code-kickstart	Agent	2	7mo ago	MIT	A	26	Claude Code
test-gap-finderHoangNguyen0403/agent-skills-standard	Agent	583	yesterday	MIT	A	37	Claude Code
Metis VerifierWholiver/metis	Agent	438	7d ago	MIT	A	36	Claude Code
pact-test-engineerSynaptic-Labs-AI/PACT-Plugin	Agent	73	yesterday	MIT	A	40	Claude Code

figma-code-composer: Agent for Claude Code