A test-driven development workflow for clawops. Test-driven development, or TDD, means writing a test before the code, making it pass, and then improving the code while keeping the test passing.

Adding or changing providers, Pulumi components, MCP tools, planning code, and transport code with the expected test locations and mocks.

It provides a repeatable way to check changes and prevents unit tests from calling real cloud services or other external systems.

tdd — Skill by dfridkin

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 skills/dfridkin/clawops/tdd

Any agent

npx skills add dfridkin/clawops --skill tdd

Clone the repo

git clone --depth 1 https://github.com/dfridkin/clawops

Made for: Claude Code, Codex.

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 310 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.

Model	Per session	Once invoked
Fable 5	$0.00000	$0.00310
Opus 5	$0.00000	$0.00155
Sonnet 5	$0.00000	$0.00062
Haiku 4.5	$0.00000	$0.00031

Measured 2d ago against content hash d8aa3c081748, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

tdd 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 2d 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/skills/tdd/SKILL.md · 38 lines

What it actually says

/tdd

Test-driven development workflow for clawops.

Steps

Write the test first in the appropriate tests/ subdirectory.
Run pnpm test:changed to confirm the test fails (red).
Implement the minimum code to make the test pass.
Run pnpm test:changed again to confirm green.
Refactor if needed, keeping tests green.

Test placement

Code	Test location
`src/providers/<name>/`	`tests/providers/<name>/`
`src/pulumi/components/`	`tests/pulumi/components.test.ts`
`src/mcp/tools/`	`tests/mcp/tools.test.ts`
`src/plan/`	`tests/plan/schema.test.ts`
`src/transport/`	`tests/transport/`

Mocking rules

Cloud SDKs: @aws-sdk/client-mock or nock. Never call real cloud APIs in unit tests.
Pulumi components: pulumi.runtime.setMocks().
SSH: mock at the ssh2 level or use linuxserver/openssh-server for integration tests.

Coverage targets

Overall: 70% line coverage
src/plan/validate.ts: 100%
src/providers/types.ts interface adherence: 90%

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.

2d ago First seen · 38 lines · 0 tokens per session scan A d8aa3c081748

Subscribe to this mod's changes

tdd is a skill published in the GitHub repository dfridkin/clawops (1 stars, last pushed 1mo ago), licensed MPL-2.0. It costs nothing until one of its globs matches a file; then it loads 310 tokens. 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.

TDD Testing

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Run all three agent integration phases sequentially: research, write-tests, and implement using E2E-first TDD (unit tests written last). For individual phases, use /agent-integration:research, /agent-integration:write-tests, or /agent-integration:implement. Use when the user says "integrate agent", "add agent…

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code-assist

Guides implementation of code tasks using test-driven development in an Explore, Plan, Code, Commit workflow. Acts as a Technical Implementation Partner and TDD Coach — following existing patterns, avoiding over-engineering, and producing idiomatic, modern code.

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tdd