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 chf3198/copilot-governance --skill breaking-change-recoverygit clone --depth 1 https://github.com/chf3198/copilot-governanceWrote 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/chf3198/copilot-governance/breaking-change-recovery)<a href="https://agentmods.dev/skills/chf3198/copilot-governance/breaking-change-recovery"><img src="https://agentmods.dev/badge/skills/chf3198/copilot-governance/breaking-change-recovery/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/chf3198/copilot-governance/breaking-change-recovery"><img src="https://agentmods.dev/badge/skills/chf3198/copilot-governance/breaking-change-recovery.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 | $0.00040 | $0.00536 |
| Opus 5 | $0.00020 | $0.00268 |
| Sonnet 5 | $0.00008 | $0.00107 |
| Haiku 4.5 | $0.00004 | $0.00054 |
Grade A, and why
breaking-change-recovery 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 11d 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
Breaking-Change Recovery Skill
Reference: instructions/breaking-change-recovery.instructions.md
When to invoke
- Any role detects a P0/P1 runtime or schema breakage after a merge.
- Consultant Tier-3 escalation hands off to this skill.
Quick-start
- Identify the breaking commit SHA and causal issue number.
- Post
INCIDENT_OPENon the causal issue with severity + blocked teams. - Revert with
git revert <sha> --no-edit— merge immediately. - File triage ticket:
fix: [regression description]withtype:bug. - Fix on branch
fix/<triage-ticket#>-<slug>; add regression test. - Post
SMOKE_EVIDENCEbefore re-merge. - Re-author casualties: close original (
resolution:superseded), refile.
Smoke evidence block template
## SMOKE_EVIDENCE
fix_pr: #N
breaking_sha: <sha>
- [x] runtime starts without error
- [x] regression test passes
- [ ] governance hook fires correctly (schema/hook fixes)
- [ ] affected team confirms unblocked (P0 only)
Signed-by: <alias>
Team&Model: <team>:<model>@<substrate>
Role: admin
Worked example
Chain: #1917 (cause) → #1951 (triage) → #1952 / c857ce8 (fix)
→ #1953 (casualty closed) → #1954 (casualty refiled).
See full narrative in instructions/breaking-change-recovery.instructions.md
Phase 6 "Worked Example" section.
Escalation path
If the fix cannot be completed within one session, the Manager must post a
BLOCKER_NOTE on the triage ticket and elevate severity to P0.
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.
- 11d ago First seen · 65 lines · 40 tokens per session scan A 33dda88fb5c7
breaking-change-recovery is a skill published in the GitHub repository chf3198/copilot-governance (2 stars, last pushed 1mo ago), licensed MIT. It adds 40 tokens to every session and 536 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 2026-08-31.
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