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 rules/gustavobarbosab/sage/sage-updategit clone --depth 1 https://github.com/gustavobarbosab/sageWrote 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/rules/gustavobarbosab/sage/sage-update)<a href="https://agentmods.dev/rules/gustavobarbosab/sage/sage-update"><img src="https://agentmods.dev/badge/rules/gustavobarbosab/sage/sage-update.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 | $0.00013 | $0.00415 |
| Opus 5 | $0.00006 | $0.00208 |
| Sonnet 5 | $0.00003 | $0.00083 |
| Haiku 4.5 | $0.00001 | $0.00042 |
Grade A, and why
sage-update 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 4d 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
/sage update
Applies precise, spec-anchored feedback to generated code.
Inline argument
The user provides feedback inline:
/sage update "Scenario 'Double submit' is missing the assertion that no duplicate request is made"
/sage update "spec item 4 violated — navigation is inside the ViewModel, move it out"
/sage update "harness says Material3 only but the code imports Material2 Button"
If no argument is provided, ask: "What needs changing? Tie your feedback to a specific spec item or scenario."
Instructions
Read the feedback argument. Apply the requested changes to the relevant files.
Rules:
- Do NOT introduce changes the user didn't request
- Do NOT deviate from the harness
- If a requested change would violate spec.md or behavior.md, flag it before applying: "⚠️ This change conflicts with [spec item / scenario]. Do you want to update the spec first?"
- Return only the modified files in the same
// FILE:format
What good feedback looks like
Guide the user toward precise feedback if theirs is vague:
✅ "Scenario Double submit during loading is missing the assertion that no duplicate auth request is made"
✅ "Spec item 'Generic error on auth failure' is violated — raw exception message is surfaced. Replace with a generic string resource."
✅ "Harness says navigation via lambda callbacks but LoginViewModel calls NavController directly."
❌ "This doesn't look right" → ask: "Which spec item or scenario does it violate?" ❌ "Make it cleaner" → ask: "What specifically should change?"
After update
Tell the user:
"Changes applied. Review the updated files. Run /sage update <feedback> again for further changes, or /sage pr and /sage doc when ready to export."
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.
- 4d ago First seen · 53 lines · 13 tokens per session scan A 2347f0a488dd
sage-update is a cursor rule published in the GitHub repository gustavobarbosab/sage (2 stars, last pushed 2mo ago), licensed MIT. It adds 13 tokens to every session and 415 once invoked, about $0.0001 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 2026-08-31.
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