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CONTRIBUTOR TOOL - Cut a plugin release: bump plugin.json version, finalize CHANGELOG, update README if needed, gate on make ci, commit, tag vX.Y.Z, and create the GitHub release. Use when shipping a new plugin version. NOT distributed.

OTP/BEAM patterns and Elixir idioms — GenServer, Supervisor, Task, Registry, pattern matching, with chains, pipes. Use when designing processes or debugging BEAM issues.

Verify Elixir/Phoenix changes — compile, format, and test in one loop. Use after implementation, before PRs, or after fixing bugs.

Project health audit and health check — architecture, performance, tests, dependencies, code quality. Use when assessing overall project health, before releases, or after refactors.

Recommend safe Bash permissions for Elixir mix commands in settings.json. Use when permission prompts slow workflow, "fix permissions", "reduce prompts", "auto-allow mix".

Analyze Elixir/Phoenix performance — N+1 queries, assign bloat, ecto optimization, genserver bottlenecks. Use when slowness, timeouts, or high memory reported.

Address PR review comments on Elixir/Phoenix code — fetch comments, draft responses, optionally fix code. Use when the user shares a PR URL or mentions reviewer feedback.

Research Elixir/Phoenix topics or evaluate Hex libraries (--library). Use when learning about libraries, patterns, or comparing approaches. Searches HexDocs, ElixirForum, GitHub.

Use Fast Apply (edit_file) for precise edits without reading full files.

Research open-source repositories to understand how something is built or works.

Create high-quality git commits: review/stage intended changes, split into logical commits, and write clear commit messages (including Conventional Commits). Use when the user asks to commit, craft a commit message, stage changes, or split work into multiple commits.

Use this skill when the user asks you something that requires searching a code base

Research existing architecture before implementing a complex feature.

Creates comprehensive handoff documents for seamless AI agent session transfers. Triggered when: (1) user requests handoff/memory/context save, (2) context window approaches capacity, (3) major task milestone completed, (4) work session ending, (5) user says 'save state', 'create handoff', 'I need to pause', 'context is getting full', (6) resuming work with 'load handoff', 'resume from', 'continue where we left off'. Proactively suggests handoffs after substantial work (multiple file edits, complex debugging, architecture decisions). Solves long-running agent context exhaustion by enabling fresh agents to continue with zero ambiguity.

Use when building an HTTP API client, SDK wrapper, or service integration module in Elixir using the Req library. Triggers on "API client", "SDK", "service wrapper", "HTTP integration", "webhook", "Req plugin", or when creating modules that call external APIs.

CRITICAL for ALL Elixir/Phoenix/Ash development work. Invoke when working with Elixir code, Ecto schemas, Ash resources, Phoenix applications, or databases in Elixir projects. Provides MCP tools for live code evaluation (via IEx), instant module navigation, direct SQL execution, schema introspection, and documentation access. Tidewave provides superior alternatives to bash/grep/read for Elixir tasks.

Web browser CLI tool for testing and verifying web pages during development. USE WHEN: - You need to verify functionality of a web page or app you're building - You need to test a web endpoint, check build status, or validate UI output - You need to interact with a running web application (login, fill forms, navigate) - The user asks to scrape, fetch, screenshot, or interact with any URL - You are building features and need to confirm they work in the browser This is the GO-TO TOOL for verifying web functionality. Prefer `web` over WebFetch for any page that uses JavaScript, LiveView, or requires session state.