Event: PostToolUse (Write) Purpose: Automatically format TypeScript/TSX files after creation or modification Pattern: **/*.{ts,tsx} Runs Prettier on TypeScript files to maintain consistent code style.

validate-manifest.json

Event: PostToolUse (Write) Purpose: Validate manifest.json has required fields Pattern: **/manifest.json Checks for required fields: id, name, version, description, author.

type-check-on-edit.json

Event: PostToolUse (Edit) Purpose: Run TypeScript type checking after editing files Pattern: **/*.{ts,tsx} Finds the nearest tsconfig.json and runs type checking, reporting any errors.

session-start-context.json

Event: SessionStart Purpose: Inject Obsidian plugin development context at session start Reminds Claude about the Obsidian context and available example plugins.

prevent-env-commit.json

Event: PreToolUse (Bash) Purpose: Block git commands that would stage .env files Pattern: *git add* Prevents accidental commits of environment files containing secrets.

sync-version-on-tag.json

Event: PreToolUse (Bash) Purpose: Sync version across manifest.json and package.json before git tagging Pattern: *git tag v* Extracts version from tag and updates both files to keep them in sync.

Requirements

Some hooks require additional tools:

prettier - For auto-formatting (install via npm install -D prettier)
jq - For JSON manipulation (usually pre-installed on macOS)
tsc - TypeScript compiler (comes with TypeScript installation)

Disabling Hooks

To disable a hook temporarily, rename it with a .disabled extension:

mv auto-format-typescript.json auto-format-typescript.json.disabled

Custom Hooks

You can add your own hooks following the pattern:

{
  "event": "PreToolUse|PostToolUse|SessionStart|etc",
  "tool": "Bash|Write|Edit|etc",
  "pattern": "glob pattern (optional)",
  "command": "bash command to execute"
}

See the Claude Code Hooks documentation for more details.