Claude Skills by hatch3r

Audits and updates npm dependencies for security, freshness, and bundle impact. Use when auditing dependencies, responding to CVEs, or upgrading packages.

Detects existing design tokens, component library, and theming convention in a project before authoring new UI primitives — output a concise inventory for downstream implementers

Authors technical documentation through a repeatable workflow — audience analysis, Diátaxis-mode selection, structure, draft, review, publish. Covers READMEs, ADRs, API docs, and runbooks. Use when writing or restructuring any project documentation.

Enhancability verification gate before commit/release — feature-flag adoption on behavior changes, config externalization, semver-versioned APIs, forward-compat headers, extension-point definition, startup config validation

End-to-end feature implementation workflow. Covers data model, domain logic, API, and UI as a vertical slice. Use when implementing new features or working on feature request issues.

Captures user feedback on an agent recommendation or workflow outcome, classify it, sanitize it, and route it to the right destination — a local feedback record, a GitHub issue from the agent-recommendation-feedback template, or a learning. Use after an agent gives advice the user wants to rate, correct, or escalate.

Sets up CI/CD agentic workflows for continuous AI-powered repository automation (GitHub Actions, Azure Pipelines, GitLab CI)

Captures mid-work session state into a canonical handoff document at .hatch3r/handoffs/active/. Use when ending a session mid-work, switching tools, or after context-health Orange/Red.

Loads and resumes a handoff document from .hatch3r/handoffs/active/. Validates schema, integrity, expiry, and git_ref drift before surfacing content as user-tier context.

Define, edit, and manage event-driven hooks that activate agents on project events. Tool-agnostic — adapters translate hook definitions into tool-native configurations during `npx hatch3r sync`.

Handles production incidents with structured triage, mitigation, and post-mortem. Use when responding to production issues, outages, or security incidents.

Guides the 8-step agentic development workflow for issues/work items. Covers parsing issues, loading skills, reading specs, planning, implementing, testing, opening PRs/MRs, and addressing review. Use when working on any issue/work item or when the user mentions an issue number.

Captures learnings from completed development sessions into reusable knowledge files for future consultation. Invoke manually, from board-pickup after PR merge, or with a specific issue number for targeted reflection.

Workflow for changing behavior or logic flow without adding new features or overhauling UI. Use when modifying business logic, data flows, behavioral rules, or working on logical refactor issues.

Maintainability verification gate before commit/release — jscpd duplication index, pattern reuse ratio, cyclomatic complexity, expand-contract migrations, API breaking-change discipline, ADR presence

Plans and executes migrations for databases, frameworks, and dependencies. Covers breaking change analysis, phased rollout, and rollback procedures.

Verification gate before declaring an agent-produced service done — OTel span coverage on request path, structured-log + trace-id correlation, SLO definition, error-tracking integration, GenAI semconv on AI features

Profiles and optimizes application performance against defined budgets. Use when investigating performance issues, auditing performance budgets, or optimizing hot paths.

Creates a pull request or merge request following project conventions including branch naming, PR/MR template, checklist, and rollout plan. Use when opening or preparing a PR/MR, or when the user asks to create a PR or MR.

E2E validation workflow producing a structured pass/fail report with evidence. Use when running QA validation, acceptance testing, verifying releases, or working on QA E2E validation issues.

Authors and validates composition specs that an orchestrating agent walks via the Task tool to run hatch3r commands and skills in a dependency-ordered sequence. Use when designing a multi-step capability composition, customizing an existing one, or debugging a composition the agent walks.

Internal code quality improvement workflow without changing external behavior. Use when refactoring code structure, simplifying modules, or improving maintainability.

Cuts a release with version bump, changelog, tagging, and deploy verification. Use when preparing a release, cutting a version, or deploying to production.

Reliability verification gate before declaring an agent-produced service done — SLO defined, kill switch, timeouts, retries, probes, runbook, staged rollout

Generates an in-chat session report from the active or named transcript — every tool call, sub-agent delegation, and file edit, with diagnostics for missed parallelism, redundant work, and over-serialization. Default = current session, executive summary, in-chat.

Scalability verification gate before commit/release — stateless-handler ratio, back-pressure patterns, idempotency-key adoption, queue-based offloading, pool sizing, bulkheads, load-test pass at target scale

Security verification gate before commit/release — OAuth 2.1 + OIDC + DPoP + WebAuthn server-side, supply-chain floor (SBOM + provenance + SHA-pin + cosign), OWASP ASI01-10 control coverage, CVE acknowledgement

Interactive workflow to elicit, draft, align, and persist a team's coding conventions and working agreements as a versioned project rule or convention doc. Use when a team is setting up shared norms, codifying tacit practices, or reconciling conflicting style decisions.

Testability verification gate before commit/release — per-feature test-class mandate map, real-deal-first ratio, coverage thresholds, AI eval coverage, mutation kill-rate, contract tests, property tests, determinism contract

UI/UX verification gate before declaring a feature done — axe-core, scripted keyboard trace, accessibility-tree snapshot, four-state coverage, visual-regression baseline, one human screen-reader pass per release

UI/UX change workflow matching design, accessibility, and responsiveness requirements. Use when making visual changes, updating components, working on UI issues, or implementing design mockups.

User-friendly find replacement

JSON processor and query language

Fast recursive grep with sane defaults and gitignore awareness

A test skill for unit testing

A valid user-tier skill fixture exercising the SKILL.md subdirectory layout for the D20 user-content authoring tests.