Skill Claude Code
Validates completed work against defined acceptance criteria. Use after completing a task that has specific success criteria defined in issues, specs, or task descriptions.
Skill Claude Code
Generates edge case, failure mode, and spec-driven test cases. Covers boundary values, nil inputs, concurrency, resource exhaustion, malformed data, and requirement-linked traceability tests.
Skill Claude Code
Detects and prevents shortcut rationalization — when the agent is about to skip a step, simplify a requirement, or optimize away a constraint. Triggers proactively when rationalization patterns are noticed.
Skill Claude Code needs its repo
Provides a persistent cross-session task queue for work that should be done but isn't blocking current tasks. Enables background and future-session work tracking.
Skill Claude Code
Safely integrates commits from parallel agent branches using sequential cherry-pick. Use after parallel work completes in isolated branches or worktrees.
Skill Claude Code
Audits tests for concurrency safety — race conditions, shared mock state, cleanup ordering. Use when writing tests that involve goroutines, async operations, or shared mutable state.
Skill Claude Code
Enforces tiered test coverage standards with three dimensions — line coverage by tier, spec-to-test traceability, and spec-to-code implementation mapping. Use before claiming code is complete.
Skill Claude Code
Records resolved bugs in a persistent journal — symptom, root cause, difficulty, fix, prevention. Organized by category for future reference.
Skill Claude Code
Extracts and records architectural decisions from diffs, conversation context, and explicit choices. Supports automatic extraction from staged changes, deduplication against prior decisions, and persistent ADR-format logging with spec traceability.
Skill Claude Code
Challenges recommendations, designs, or synthesis by adversarial review across 5 dimensions. Use before shipping any significant recommendation or design document.
Skill Claude Code
Performs a fast 6-point quality check for technical documents (specs, design docs, READMEs). Use after editing any specification or design document.
Skill Claude Code
Generates fuzz test scaffolding for parsers handling external input (YAML, JSON, config files, user input). Seeds corpus from existing fixtures and runs initial pass.
Skill Claude Code
Assesses production readiness or audits a codebase against its specs. Supports quick static mode, deep 17-dimension audit, or single-dimension focus.
Skill Claude Code
Closes production readiness gaps from a gap analysis document. Autonomously loops dependency analysis, parallel agent dispatch, test gate, re-audit, and repeats until target dimensions reach target score.
Skill Claude Code
Implements snapshot/golden file tests with temporal normalization so tests don't break daily. Use when implementing tests that compare output against expected snapshots.
Skill Claude Code
Generates a session continuity document at the end of a long session or when switching context on a multi-session project. Enables seamless resumption.
Skill Claude Code
Performs end-of-iteration review with quality grading, metrics, and trend analysis. Use at the end of each development iteration or sprint.
Skill Claude Code
Analyzes large tasks for independent subtasks that can be safely parallelized. Produces a DAG-based dispatch plan with dependency ordering and maximum parallelism.
Skill Claude Code
Detects recurring implementation patterns and records them for reuse. When the same code pattern appears 3+ times, it belongs in the pattern library.
Skill Claude Code
Scans staged changes for secrets, debug statements, TODOs without references, and other common commit mistakes. Use before creating any commit.
Skill Claude Code
Sets quality expectations for implementation — "imagine this serves 1 million users." Checks for observability, error handling, input validation, graceful degradation.
Skill Claude Code
Enforces the Implement→Review→Test→Fix→Loop cycle until work is clean. Use after any non-trivial implementation to prevent "good enough" exits.
Skill Claude Code
Extracts learnings from completed work, feedback, or failures. Updates a persistent learnings file with capped entries. Use after receiving feedback, fixing bugs, or completing complex tasks.
Skill Claude Code
Validates PRD, user stories, or feature requirements against SMART criteria. Use when reviewing requirements to catch vagueness before it causes expensive rework.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: