breaking-changes SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
breaking-changes from fusengine/claude-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add fusengine/claude-plugins/breaking-changes@git:20260729.3b91eedPins git:20260729.3b91eed in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- fusengine/claude-plugins
- Path
plugins/changelog-watcher/skills/breaking-changes/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260729.3b91eed, committed Jul 29, 2026
- First version recorded
- Feb 21, 2026
- Size
- 1,764 bytes
- Repository stars
- 34
- License
- MIT
Use when checking whether a Claude Code update breaks our plugin ecosystem — hooks, agent frontmatter, manifest schema, or skill format.
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
<objective> Detects breaking changes in Claude Code updates by diffing the current API surface (hook types and matchers, agent frontmatter fields, plugin manifest schema, SKILL.md format, script CLI flags — tracked in `references/api-surface.md`) against the official changelog. Greps our plugins for each changed API and reports impact mapped to specific file:line locations, classified by severity (BREAKING / DEPRECATED / NEW). </objective> # Breaking Changes Detection Skill ## Overview Compares Claude Code API changes against our plugin ecosystem to detect compatibility issues. ## API Surface File The `api-surface.md` reference contains our current known API: - Hook types and their matchers - Agent frontmatter fields - Plugin manifest schema - Skill SKILL.md format - Script CLI flags used ## Detection Workflow 1. **Load** current api-surface.md 2. **Fetch** latest Claude Code API docs 3. **Diff** for added/changed/removed APIs 4. **Grep** our plugins for each changed API 5. **Report** with file:line impact mapping ## Impact Assessment | Change Type | Severity | Example | |-------------|----------|---------| | Removed API | BREAKING | Hook type deleted | …
Read the whole file at its exact version.
How to install
mdr add fusengine/claude-plugins/breaking-changes@sha256:8659236400ec9c3eThe line at the top of this page pins the label git:20260729.3b91eed, 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_unmp4sm6ei4joiz3)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Feb 21, 2026 and Jul 29, 2026, about one every 53 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260729.3b91eed latest | 2026-07-29 | 3b91eed | 1,764 B | A | view · diff |
| git:20260705.ba8ee52 | 2026-07-05 | ba8ee52 | 1,454 B | A | view · diff |
| git:20260705.8c2f9bc | 2026-07-05 | 8c2f9bc | 1,452 B | A | view · diff |
| git:20260221.ef8fc89 | 2026-02-21 | ef8fc89 | 1,314 B | A | 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 (1764 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
fusengine/claude-plugins · 34 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_unmp4sm6ei4joiz3 GET https://markdownregistry.com/api/v1/resolve?ref=fusengine/claude-plugins/breaking-changes GET https://markdownregistry.com/api/v1/blob/8659236400ec9c3ee93238f91ed4b2308a878c4fd97eb9ca9d160ebc703212ce
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.
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