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 agentmods add skills/djscheuf/agentic-dev-ecosystem-template/sdlc-tddnpx skills add djscheuf/agentic-dev-ecosystem-template --skill sdlc-tddgit clone --depth 1 https://github.com/djscheuf/agentic-dev-ecosystem-templateWrote 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/djscheuf/agentic-dev-ecosystem-template/sdlc-tdd)<a href="https://agentmods.dev/skills/djscheuf/agentic-dev-ecosystem-template/sdlc-tdd"><img src="https://agentmods.dev/badge/skills/djscheuf/agentic-dev-ecosystem-template/sdlc-tdd.svg" alt="Measured on agentmods" 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 | $0.00041 | $0.00416 |
| Opus 5 | $0.00020 | $0.00208 |
| Sonnet 5 | $0.00008 | $0.00083 |
| Haiku 4.5 | $0.00004 | $0.00042 |
Grade A, and why
sdlc-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 5d 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
SDLC TDD Sub-Workflow
Purpose
Implement one test from a Test plan.
Trigger
- After designing Test Cases, and for a Single Test.
Inputs Required
- Design of the user story
- Implementation plan
- Relevant domain context
- Test Cases Document
Overview
This workflow orchestrates the core TDD Red-Green Loop in a continuous cycle until the feature is complete.
TDD Implementation Cycle
- Red - Write a failing test (INVOKE write-failing-test skill)
- Green - Write minimal passing code (INVOKE write-minimal-implementation skill)
- PAUSE & COMMIT: git commit ONLY YOUR CHANGES with message "feat: [description] - test [N] of [total]"
- More Tests in Priority Group?
- If yes, go back to 1.
- If no, finish workflow.
Workflow Chain
CRITICAL: One Test at a Time Run the cycle ONCE For EACH test in the priority group. CRITICAL - Write Sentinel Files when instructed.
Phase 1 - Red Phase
- INVOKE
write-failing-testskill (mandatory - do not skip) - Address any verification failures before proceeding
Phase 2 - Green Phase
- INVOKE
write-minimal-implementationskill (mandatory - do not skip) - Address any verification failures before proceeding
Phase 3 - Commit Phase
- git commit ONLY YOUR CHANGES with message: "feat: [description] - test [N] of [total]"
Phase 4 - Loop Decision
- If More test in Priority Group, go back to Phase 1
- If no more tests in Priority Group, finish workflow
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.
- 5d ago First seen · 51 lines · 41 tokens per session scan A 530ed1f4f16c
sdlc-tdd is a skill published in the GitHub repository djscheuf/agentic-dev-ecosystem-template (12 stars, last pushed today), licensed MIT. It adds 41 tokens to every session and 416 once invoked, about $0.0002 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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