regression-watch SKILL.md skillA
regression-watch from hoangsonww/claude-code-agent-monitor is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hoangsonww/claude-code-agent-monitor/regression-watch@git:20260804.9eab0d7Pins git:20260804.9eab0d7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hoangsonww/claude-code-agent-monitor
- Path
plugins/ccam-insights/skills/regression-watch/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260804.9eab0d7, committed Aug 4, 2026
- First version recorded
- Jun 25, 2026
- Size
- 4,115 bytes
- Repository stars
- 1,159
- License
- MIT
Detect quality and efficiency regressions over time using Agent Monitor data — rising error rate (APIError events), falling cache hit rate, growing compaction frequency, and climbing cost-per-session. Splits history into an earlier baseline window and a recent window and reports which metrics are getting worse, by how much, and where. Use when checking whether things are degrading or trending in the wrong direction.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Regression Watch
Detect whether Claude Code sessions are getting worse over time across quality and
efficiency metrics, using Agent Monitor data.
## Input
The user provides: **$ARGUMENTS**
This may be:
- empty or "all" — check every regression metric (default)
- "errors" — error-rate regression only
- "cache" — cache hit-rate regression only
- "compaction" — compaction-frequency regression only
- "cost" — cost-per-session regression only
- A window like "last 30d" or "30 vs 90" — set the recent vs baseline window sizes
## Data Sources
| Endpoint | Returns |
|----------|---------|
| `GET /api/analytics` | `daily_events` (365d), `daily_sessions` (365d), `event_types`, `tokens` (total_input, total_output, total_cache_read, total_cache_write — baselines pre-summed), `avg_events_per_session` |
| `GET /api/events?session_id=X` | Event stream incl. `APIError`, `Compaction`, `PreToolUse`/`PostToolUse` — used to localize regressions to specific sessions |
| `GET /api/pricing/cost` | `{ total_cost, breakdown[...] }` — total cost to derive cost-per-session |
| `GET /api/pricing/cost/{sessionId}` | Per-session cost — used to compare recent vs baseline session cost |
…Read the whole file at its exact version.
How to install
mdr add hoangsonww/claude-code-agent-monitor/regression-watch@sha256:c73b0aa098d272d1The line at the top of this page pins the label git:20260804.9eab0d7, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_76zzmsiggjvvosh2)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jun 25, 2026 and Aug 4, 2026, about one every 41 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260804.9eab0d7 latest | 2026-08-04 | 9eab0d7 | 4,115 B | A | view · diff |
| git:20260625.879bbc2 | 2026-06-25 | 879bbc2 | 4,092 B | B | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4115 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
hoangsonww/claude-code-agent-monitor · 1,159 stars · license MIT · pushed 2026-11-08 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_76zzmsiggjvvosh2 GET https://markdownregistry.com/api/v1/resolve?ref=hoangsonww/claude-code-agent-monitor/regression-watch GET https://markdownregistry.com/api/v1/blob/c73b0aa098d272d1b4a23ecc0894bed7329d739f132801b63fc26d0a47e46e90
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.