Lean CLI tools for AI agents and developers - reduce context, save tokens
Skill Claude CodeCodex
Add new functionality by understanding existing patterns and dependencies before writing code. Locates where the feature belongs, studies conventions, implements following precedent, then verifies integration. Use when asked to add a feature, flag, endpoint, component, or module.
Skill Claude CodeCodex
Thorough code review using token-efficient context gathering. Analyzes PRs, diffs, or staged changes by checking blast radius, complexity, and dependencies before reviewing the actual code. Use when asked to review a PR, review changes, or do a code review.
Skill Claude CodeCodex
Systematically investigate and fix bugs using token-efficient context gathering. Reproduces the issue first, localizes with blame and history, traces the call path, then verifies the fix. Use when asked to fix a bug, investigate an error, or debug unexpected behavior.
Skill Claude CodeCodex
Diagnose and fix performance issues by measuring before optimizing. Establishes baselines, identifies bottlenecks through call graphs and complexity analysis, then confirms improvements with numbers. Use when asked to optimize, speed up, reduce memory usage, or fix slowness.
Skill Claude CodeCodex
Find duplicate functions and eliminate them so they stay gone. Triage tl dupes output by tier, apply the right consolidation pattern, and lock the win with a duplication-ratchet test. Use when asked to dedupe, remove duplication, consolidate copy-paste, clean up repeated helpers, or act on tl dupes output.
Skill Claude CodeCodex
Efficiently explore and understand an unfamiliar codebase using token-lean context gathering. Maps project structure, identifies key files, and builds understanding progressively without reading everything. Use when onboarding to a new project, asked to understand a codebase, or starting work in unfamiliar code.
Skill Claude CodeCodex
Git commits, pushes, and GitHub operations using tokenlean. Covers tl push (with multi-file safety guard), tl commit-prep, tl gh (bulk issue/PR/release operations), and when to use tl gh vs gh CLI vs GitHub MCP. Use when committing, pushing, creating/closing/viewing issues, managing PRs, creating releases, or any…
Skill Claude CodeCodex
Migrate frameworks, APIs, or language versions incrementally with verification at each step. Surveys the migration surface, batches work by dependency order, and commits after each verified batch. Use when asked to migrate between frameworks, upgrade major versions, or adapt to new API versions.
Skill Claude CodeCodex
Refactor code safely by analyzing blast radius and dependencies before making changes. Covers renaming, moving, extracting, and restructuring code with verification at each step. Use when refactoring, renaming symbols, extracting functions, moving files, or restructuring code.
Skill Claude CodeCodex
Upgrade dependencies safely by auditing usage, researching breaking changes, and verifying after upgrade. Scales effort to version jump size — light check for patches, full audit for majors. Use when asked to upgrade, bump, or update a dependency or package.
Skill Claude CodeCodex
Write effective tests by studying existing test patterns and understanding the code under test before writing assertions. Discovers test conventions, prioritizes public API coverage, and validates results. Use when asked to write tests, add test coverage, or create test files.