claudeplugins.

Claude Code Stop Hook: Recovering from Silent Tool Stalls

How PostToolUse Hook Exit Codes Block Claude Code Execution

The PostToolUse hook is a script Claude Code shells out to after every tool call. Its exit code is the entire control surface — exit 2 blocks the assistant and feeds stderr back into the next turn.

Claude Code Skill Description: Auto-Trigger Matching

Claude Code Plugins: Shared Source Enable/Disable

Claude Code Subagent — When to Delegate vs Keep in Main Context

Build a 5-step project exploring when Claude Code subagent delegation pays off: monolithic agent → context pressure → delegation threshold → isolation patterns → production guardrails.

Claude Code SessionStart Hook: Refreshing Context on Resume

claude code PreToolUse hook block dangerous bash command

Wire a PreToolUse hook that returns hookSpecificOutput.permissionDecision: deny on destructive Bash patterns (rm -rf, git push --force, dropping prod tables) and pipes the reason back so the agent retries with a safer command instead of failing opaquely.

Pin Claude Code Plugins to Commit SHAs in marketplace.json

Branch refs in marketplace.json let a force-push swap your installed plugin overnight. Pin commit SHAs, layer stable and beta channels, and keep upgrades intentional.

Claude Code Permission Rules: Exact Match, Wildcards, and Precedence

How permission rules in Claude Code's settings.json actually parse — exact-match versus prefix wildcards, allow/deny/ask precedence, and the gotchas that cause silent prompt loops.

Claude Code Slash Command vs Skill: When Each Fits

Slash commands wrap one-shot prompts; skills package multi-step workflows with tool allowlists. Pick by argument shape, state, and reuse.

Claude Skill Discoverability: Make Skills Fire When You Need Them

Concrete rules for naming and describing Claude Code skills so the agent loads them automatically instead of waiting for a slash invocation.

MCP stdio vs HTTP Transport: When to Pick Each for Claude Code

A practical comparison of MCP stdio and HTTP transports for Claude Code skills — local-only reach, auth model, debuggability, and the failure modes that bite in production.