Borrowing it
Nothing to install: this file belongs to talayash/agentrium. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/talayash/agentrium/master/.claude/commands/tdd.mdgit clone --depth 1 https://github.com/talayash/agentriumWrote 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.
[](https://agentmods.dev/commands/talayash/agentrium/tdd)<a href="https://agentmods.dev/commands/talayash/agentrium/tdd"><img src="https://agentmods.dev/badge/commands/talayash/agentrium/tdd/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.
<a href="https://agentmods.dev/commands/talayash/agentrium/tdd"><img src="https://agentmods.dev/badge/commands/talayash/agentrium/tdd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00000 | $0.00359 |
| Opus 5.5 | $0.00000 | $0.00144 |
| Sonnet 5.5 | $0.00000 | $0.00072 |
| Haiku 4.5 | $0.00000 | $0.00036 |
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 1mo 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.
What it actually says
TDD
Implement a feature using strict Test-Driven Development.
Instructions
Implement the following using TDD: $ARGUMENTS
The TDD Cycle
Follow this cycle strictly. Do NOT skip steps.
🔴 RED - Write a Failing Test
- Write a test that describes the desired behavior
- Run the test - it MUST fail
- If it passes, the test is wrong or the feature already exists
🟢 GREEN - Make It Pass
- Write the MINIMUM code to make the test pass
- Do not write more code than needed
- Run the test - it MUST pass now
🔵 REFACTOR - Clean Up
- Refactor the implementation (not the test) for clarity
- Run the test - it MUST still pass
- No behavior changes during refactor
Repeat
Continue the RED → GREEN → REFACTOR cycle for each piece of functionality.
For This Project
Frontend tests (if applicable):
- Use Vitest for unit tests
- Test React components with @testing-library/react
- Test Zustand stores directly
Backend tests (if applicable):
- Use
#[cfg(test)]modules in Rust - Test command logic without Tauri runtime where possible
- Use mock implementations for Database/TerminalManager
Checkpoints
Create a git checkpoint after each completed GREEN phase:
git add -A && git commit -m "checkpoint: [test description] - GREEN"
Report
After implementation:
## TDD Report
- Tests written: N
- All passing: ✅/❌
- Cycles completed: N
- Coverage: [estimate]
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.
- 1mo ago First seen · 58 lines · 0 tokens per session scan A 49c0205ded18
tdd is a command published in the GitHub repository talayash/agentrium (46 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 359 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 2026-08-30.
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