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 t1/tdder --skill grill-pogit clone --depth 1 https://github.com/t1/tdderWrote 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/t1/tdder/grill-po)<a href="https://agentmods.dev/skills/t1/tdder/grill-po"><img src="https://agentmods.dev/badge/skills/t1/tdder/grill-po.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00082 | $0.01034 |
| Opus 5 | $0.00041 | $0.00517 |
| Sonnet 5 | $0.00016 | $0.00207 |
| Haiku 4.5 | $0.00008 | $0.00103 |
Grade A, and why
grill-po 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Grill PO
Interview the user relentlessly about every aspect of their plan until you reach a shared understanding. Walk down each branch of the design tree, resolving dependencies between decisions one-by-one. For each question, provide your recommended answer.
Ask questions one at a time, waiting for feedback on each before continuing.
If a question can be answered by exploring the codebase, explore the codebase instead.
Domain Awareness
During codebase exploration, also look for existing documentation.
File Structure
Single-context repo:
/
├── bounded-context.md
├── docs/
│ └── features/
│ ├── place-order.feature
│ └── cancel-order.feature
└── src/
Multi-context mono-repo:
/
├── README.md ← contains "Bounded Contexts" section (context map)
├── AGENTS.md ← contains "Bounded Contexts" section (context map)
├── docs/
├── src/
│ ├── ordering/
│ │ ├── ordering-bounded-context.md
│ │ └── docs/features/ ← context-specific features
│ └── billing/
│ └── billing-bounded-context.md
Create files lazily — only when you have something to write.
Detecting the structure:
- If a
bounded-context.mdexists at root → single context - If
*-bounded-context.mdfiles exist elsewhere → multi-context; read the "Bounded Contexts" section ofREADME.mdorAGENTS.mdfor the context map - If neither exists → create
bounded-context.mdlazily when the first term is resolved
When multiple contexts exist, infer which one the current topic relates to. If unclear, ask.
During the Session
Challenge against the glossary
When the user uses a term that conflicts with the existing language in the bounded-context file, call it out immediately. "Your glossary defines 'cancellation' as X, but you seem to mean Y — which is it?"
Also scan existing .feature files for terminology drift: if a scenario uses a term differently from the
bounded-context file, surface it. "Your feature file says 'purchase' but the glossary defines that concept
as 'order' — which should it be?"
What ships with it
2 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.
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.
- 8d ago First seen · 115 lines · 82 tokens per session scan A 3579a8ee878f
grill-po is a skill published in the GitHub repository t1/tdder (14 stars, last pushed 2d ago), licensed Apache-2.0. It adds 82 tokens to every session and 1,034 once invoked, about $0.0004 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.
Other skills, from other repositories
deep-plan
Creates detailed, sectionized, TDD-oriented implementation plans through research, stakeholder interviews, and multi-LLM review. Use when planning features that need thorough pre-implementation analysis.
eval-authoring
This skill should be used when the user mentions "llm eval", "evaluation", "promptfoo", "deepeval", "regression test", "llm judge", "golden dataset", "eval suite", "test a prompt", or wants to prove a prompt/model change improved rather than regressed behavior. It provides a standardized methodology for authoring…
wave-execution-framework-v2
Use when executing multi-wave engineering work needing strict TDD, bug-capture/fix split, quality gates, and orchestrated teams with per-agent Opus-advisor / Sonnet-executor model routing.
tdd-arrange-act-assert
This skill should be used when the user asks to "structure tests", "organize test code", mentions "arrange act assert", "AAA pattern", "given when then", discusses test readability, or wants to improve test structure.
tdd-red-green-refactor
This skill should be used when the user asks to "do TDD", "write tests first", mentions "red-green-refactor", discusses test-driven development cycles, or wants to build features incrementally with tests.
tdd-test-first
This skill should be used when the user asks to "write tests first", "start with a test", mentions "test-first development", discusses writing tests before implementation, or wants to ensure code is testable by design.