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.
npx skills add rawveg/skillsforge-marketplace --skill tdd-methodology-expertgit clone --depth 1 https://github.com/rawveg/skillsforge-marketplaceWrote 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/skills/rawveg/skillsforge-marketplace/tdd-methodology-expert)<a href="https://agentmods.dev/skills/rawveg/skillsforge-marketplace/tdd-methodology-expert"><img src="https://agentmods.dev/badge/skills/rawveg/skillsforge-marketplace/tdd-methodology-expert/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/skills/rawveg/skillsforge-marketplace/tdd-methodology-expert"><img src="https://agentmods.dev/badge/skills/rawveg/skillsforge-marketplace/tdd-methodology-expert.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 | $0.00113 | $0.05248 |
| Opus 5 | $0.00056 | $0.02624 |
| Sonnet 5 | $0.00023 | $0.01050 |
| Haiku 4.5 | $0.00011 | $0.00525 |
Grade A, and why
tdd-methodology-expert 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 12d 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- assets/hook-templates/pre-commit.sh 3.3 KB runs code
- assets/hook-templates/user-prompt-submit.sh 2.3 KB runs code
- plugin.json 527 B
- references/code-smells.md 15 KB
- references/tdd-principles.md 12 KB
- references/testing-patterns.md 14 KB
- scripts/check_tdd_compliance.py 10 KB runs code
- scripts/setup_hooks.sh 3.6 KB runs code
- scripts/validate_tests.py 9.3 KB runs code
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.
- 12d ago First seen · 738 lines · 113 tokens per session scan A b68ce2e13406
tdd-methodology-expert is a skill published in the GitHub repository rawveg/skillsforge-marketplace (40 stars, last pushed 6mo ago), with no licence file. It adds 113 tokens to every session and 5,248 once invoked, about $0.0006 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.
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