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 thettwe/nyann --skill record-decisiongit clone --depth 1 https://github.com/thettwe/nyannWrote 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/thettwe/nyann/record-decision)<a href="https://agentmods.dev/skills/thettwe/nyann/record-decision"><img src="https://agentmods.dev/badge/skills/thettwe/nyann/record-decision/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/thettwe/nyann/record-decision"><img src="https://agentmods.dev/badge/skills/thettwe/nyann/record-decision.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 | $0.00159 | $0.01115 |
| Opus 5.5 | $0.00064 | $0.00446 |
| Sonnet 5.5 | $0.00032 | $0.00223 |
| Haiku 4.5 | $0.00016 | $0.00112 |
Grade A, and why
record-decision 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.
How it starts
The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
record-decision
Wraps bin/record-decision.sh. Creates one ADR file per invocation
under docs/decisions/ (or the profile's configured location). Only
MADR format is supported in v1.
1. Collect inputs from the user
-
--title(required). Short, imperative headline: "Use Postgres for the primary datastore", "Adopt pnpm over npm". If the user's phrasing is long and prose-y ("I think we should probably go with Postgres because…"), propose a crisp title and confirm. -
--status.proposed(default) when the decision is still up for review;acceptedwhen the user says "we've already decided" or similar. Never default toacceptedsilently — when unclear, you MUST call theAskUserQuestiontool (not plain text):{ "questions": [ { "question": "What is the status of this decision?", "header": "Status", "multiSelect": false, "options": [ { "label": "Proposed (Default)", "description": "Decision is open for review" }, { "label": "Accepted", "description": "Decision has already been agreed upon" } ] } ] } -
--dir. Defaultdocs/decisions. Override when the repo uses a different location (check the profile'sdocumentation.scaffold_typesif uncertain). -
--slug— derived from the title. Review the auto-derived slug with the user when the title contains non-ASCII or unusual punctuation.
2. Check for existing scaffolding
record-decision creates the directory if missing, but doesn't
scaffold a README.md or ADR-000. If the directory is empty (no
prior ADRs), mention that bootstrap-project scaffolds an introductory
ADR-000 and offer to run it first — but proceed with the new ADR
either way if the user insists.
3. Dry-run first when the title is non-obvious
Run bin/record-decision.sh --dry-run and read back:
- The target path (which ADR number it'll land at).
- The derived slug.
Confirm before the real run. Single-line "record that we chose X" phrasings can skip confirmation when the title is already explicit.
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 · 118 lines · 159 tokens per session scan A ce0ba1065c3f
record-decision is a skill published in the GitHub repository thettwe/nyann (7 stars, last pushed 6d ago), licensed MIT. It adds 159 tokens to every session and 1,115 once invoked, about $0.0006 per session on Opus 5.5. 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 2026-09-03.
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