fable5-skills — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited fable5-skills (Plugin) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 0 flagged
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
10 battle-ready Agent Skills for Claude Fable 5 — the first skill collection designed around how Claude Fable 5 actually behaves, not how older models needed to be babysat.
Anthropic's own guidance for Fable 5 notes that skills written for prior models are often too prescriptive for it and can degrade output quality. Old skills micromanage; Fable 5 needs intent, boundaries, and verification hooks instead. Every skill here is written Fable 5-first.
Works with Claude Code, Claude Cowork, Cursor, Copilot, Gemini CLI, and any harness that reads SKILL.md files (agentskills.io-style: YAML frontmatter + Markdown body).
| # | Skill | What it fixes |
|---|---|---|
| 1 | skill-refactorer | The meta-skill. Audits your pre-Fable-5 skills/prompts, deletes capability-compensation scaffolding, keeps real guardrails. |
| 2 | act-when-ready | Over-planning at high effort: re-deriving settled facts, surveying options it won't pursue. |
| 3 | effort-calibrator | Picking the right effort level per workload; Fable 5 at medium often beats older models at max. |
| 4 | no-gold-plating | Diffs bigger than the ask: unrequested refactors, speculative abstractions, impossible-state error handling. |
| 5 | grounded-progress | Status reports on long runs must point at tool-result evidence — no more "tests passing" that never ran. |
| 6 | scope-guard | "Diagnose" ≠ "fix". No unrequested actions, no state changes on pattern-matched evidence. |
| 7 | subagent-orchestration | Parallel delegation, long-lived workers, and fresh-context verifier subagents that out-perform self-critique. |
| 8 | markdown-memory | A file-based lesson memory Fable 5 exploits unusually well — with the maintenance discipline that keeps it useful. |
| 9 | autonomous-continuation | Unattended runs that stall on "I'll now run X" or mid-run permission questions. Includes the context-budget composure pattern. |
| 10 | regrounding-summary | Final reports readable by someone who saw none of the work — no arrow chains, no invented abbreviations. |
Claude Code (recommended) — install as a plugin, get updates automatically:
/plugin marketplace add kpab/claude-fable-5-skills
/plugin install fable5-skills@claude-fable-5-skillsManual — copy any skill folder into your skills directory:
git clone https://github.com/kpab/claude-fable-5-skills
cp -r claude-fable-5-skills/skills/act-when-ready ~/.claude/skills/Or cherry-pick per project by placing folders under .claude/skills/ in the repo. Other harnesses: point your skill loader at the skills/ directory; each skill is a self-contained folder with one SKILL.md.
Four skills are task-shaped and trigger automatically when a matching request appears: skill-refactorer, effort-calibrator, subagent-orchestration, markdown-memory.
The other six are standing behavioral rules. A model that is mid-over-planning won't reliably decide to invoke act-when-ready on its own, so don't count on auto-triggering for these. Two reliable paths:
/act-when-ready) at the start of the session, or the moment the symptom shows up.CLAUDE.md; this is how Anthropic's own Fable 5 guide ships these patterns. autonomous-continuation is written for exactly this.Fable 5 shipped on 2026-06-09. These skills track a moving target — expect refinements as the community learns the model. Issues and PRs with reproducible before/after examples are very welcome.
This is an unofficial community project, not affiliated with or endorsed by Anthropic. Verify current API parameters against the official docs before production use.
MIT — see LICENSE.
~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.