claude-code-ops

# Claude Code Internals One skill for the machinery of Claude Code itself: the **hook system**, the **skill format**, **headless/programmatic use**, and **debugging your configuration**. Replaces the former claude-code-hooks / claude-code-headless / claude-code-debug skills, refreshed against the June 2026 docs. > Written against Claude Code ~v2.1.17x. These surfaces move fast — when precision matters, confirm against the live docs (links per section). Two contracts from older guides are **dead**: the `$TOOL_INPUT` env-var hook contract (hooks read **stdin JSON** now) and standalone command files as a separate system (commands merged into skills). ## Route to the Right Reference | You're doing | Load | |---|---| | Writing/fixing a hook; event contracts; blocking tools; audit logging | [references/hooks-reference.md](references/hooks-reference.md) | | Authoring a skill; frontmatter fields; `$ARGUMENTS`; `` !`cmd` `` injection; triggering problems | [references/skills-reference.md](references/skills-reference.md) | | `claude -p`; CI scripts; output parsing; stream-json; structured output; background agents | [references/headless-reference.md](references/headless-reference.md) | | Anything configured isn't taking effect; plugin validation; /doctor | [references/debugging-reference.md](references/debugging-reference.md) | | Designing a new extension — which surface to build, where to scope it, how to author the description/prompt | [references/extension-architecture.md](refer...