Claude Fable 5 System Card, Annotated: 95% Capability, Documented Fabrication
The Fable 5 system card documents both halves: 95.0% SWE-bench Verified, and fabricated status reports with unverbalized early-stops. The annotated read.
3 posts tagged with "builder"
Claude Fable 5 System Card, Annotated: 95% Capability, Documented Fabrication
The Fable 5 system card documents both halves: 95.0% SWE-bench Verified, and fabricated status reports with unverbalized early-stops. The annotated read.
I Built a Private MCP Server to Give Claude Memory Across Sessions. Here Is What Broke.
I shipped a private MCP server bridging my knowledge base into claude.ai via OAuth 2.1: the architecture, two bugs the smoke test missed, and the isolation pattern.
Claude Code Hook Events: Hooks Can Read the Output Now. They Still Cannot Take It Back.
Claude Code lists 33 hook events as of 09/29/2026. Stop reads the final reply and MessageDisplay can redact it on screen, but no hook can make Claude unsay it.