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 Snowflake-Labs/cocoplus --skill tune-rubricgit clone --depth 1 https://github.com/Snowflake-Labs/cocoplusWrote 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/snowflake-labs/cocoplus/tune-rubric)<a href="https://agentmods.dev/skills/snowflake-labs/cocoplus/tune-rubric"><img src="https://agentmods.dev/badge/skills/snowflake-labs/cocoplus/tune-rubric/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/snowflake-labs/cocoplus/tune-rubric"><img src="https://agentmods.dev/badge/skills/snowflake-labs/cocoplus/tune-rubric.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 | $0.00021 | $0.00245 |
| Opus 5.5 | $0.00008 | $0.00098 |
| Sonnet 5.5 | $0.00004 | $0.00049 |
| Haiku 4.5 | $0.00002 | $0.00024 |
Grade A, and why
tune-rubric 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 16d 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
Objective
Implement $cocopod tune-rubric. Read only entries marked never_fires, propose specific rewrites that preserve the original intent while making the condition checkable, and show the source line and proposed replacement to the operator. Apply only explicitly accepted rewrites, then recompile the rubric.
Exit Criteria
- Tuning runs only after an operator command.
- Every applied rewrite has explicit approval and preserves a source citation.
- The rubric is recompiled after accepted source changes.
Anti-Rationalization
| Shortcut / Temptation | Why It Fails |
|---|---|
| Automatically rewrite all flagged rules | Calibration evidence starts a review; it is not write authorization. |
Edit rubric.json without the source |
The instruction file remains the source of truth. |
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.
- 16d ago First seen · 30 lines · 21 tokens per session scan A b57ac40d52e4
tune-rubric is a skill published in the GitHub repository Snowflake-Labs/cocoplus (724 stars, last pushed 12d ago), licensed MIT. It adds 21 tokens to every session and 245 once invoked, about $0.0001 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 2026-10-01.
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