Skill Claude Code
Concurrency safety audit for a type or file. Maps all fields, traces which are accessed from concurrent contexts (goroutines, threads, async tasks), and flags fields that lack synchronization. Produces a field-level safety report. Language-agnostic across 4 concurrency families.
Skill Claude Code
Cross-repository analysis — find all callers of a library symbol in one or more consumer repos. Use when refactoring a shared library and need to understand how consumers use it.
Skill Claude Code
Enumerate exported symbols in a file and surface those with zero references across the workspace. Use when auditing for dead code, cleaning up APIs, or checking which exports are safe to remove.
Skill Claude Code
Safe workflow for editing exported symbols or public APIs. Use when changing a function signature, modifying a public type, or altering any symbol used outside its own package — finds all callers first so nothing breaks silently.
Skill Claude Code
Edit a named symbol without knowing its file or position. Use when you want to change a function, type, or variable by name and don't have exact coordinates. Resolves the symbol to its definition, retrieves its full range, and applies the edit.
Skill Claude Code
"Tell me about this symbol": hover + implementations + call hierarchy + references in one pass — for navigating unfamiliar code.
Skill Claude Code
Extract a selected code block into a named function. Primary path uses the language server's extract-function code action; falls back to manual extraction when no code action is available. Validates captured variables, scope shadowing, and compilation after extraction.
Skill Claude Code
Apply available quick-fix code actions for all current diagnostics in a file, one at a time with re-collection between each fix. Use to bulk-resolve errors and warnings the language server can fix automatically.
Skill Claude Code
Format a file or selection using the language server's formatter. Use before committing to apply consistent style, or after generating code to clean up indentation and spacing. Supports full-file and range-based formatting.
Skill Claude Code
Trigger language server code generation — implement interface stubs, generate test skeletons, add missing methods, generate mock types. Uses suggestfixes to surface generator options and executecommand to run them.
Skill Claude Code
Blast-radius analysis for a symbol or file — shows all callers, type supertypes/subtypes, and reference count before you change it. Use when refactoring, deleting, or changing the signature of any function, type, or method. Also accepts a file path to surface all exported-symbol impact in one shot.
Skill Claude Code
Find all concrete implementations of an interface or abstract type. Use when you need to know what types satisfy an interface, or what subtypes exist before changing a base type.
Skill Claude Code
Full code quality audit for a file, package, or directory. Supports batch mode (directory walk with --top ranking), comparison mode (--diff for branch-only issues), severity calibration by blast radius, fix suggestions, and confidence tiers. Applies a check taxonomy (dead symbols, silent failures, error wrapping…
Skill Claude Code
Fast file-scoped symbol analysis — find all usages of a symbol within the current file, list all symbols defined in the file, and get type info at a position. Use when you need local-scope analysis without a workspace-wide search.
Skill Claude Code
First-session project onboarding. Explores the project structure, detects build system, test runner, entry points, and key architecture patterns. Produces a structured project profile the agent can reference throughout the session.
Skill Claude Code
End-to-end safe refactor workflow — blast-radius analysis, speculative preview, apply to disk, verify build, run affected tests. Inlines lsp-impact + lsp-safe-edit + lsp-verify + lsp-test-correlation into one coordinated sequence.
Skill Claude Code
Two-phase safe rename across the entire workspace. Use when renaming any symbol, function, method, variable, type, or identifier — shows all affected sites before executing atomically via LSP. Never renames without confirmation.
Skill Claude Code
Wrap any code edit with before/after diagnostic comparison. Speculatively previews the change first (previewedit), then applies to disk only if the error delta is acceptable. If post-edit errors appear, surfaces code actions for quick fixes. Handles single and multi-file edits.
Skill Claude Code
Speculative code editing session — simulate changes in memory before touching disk. Use when planning edits that might break things, exploring refactors across multiple files, or verifying an edit is safe before applying.
Skill Claude Code
Find and run the tests that cover a source file. Use after editing a file to discover exactly which test files and test functions need to run — without running the entire test suite.
Skill Claude Code
Deep-dive exploration of unfamiliar code — given a symbol or file, builds a complete Code Map showing type info, implementations, call hierarchy (2-level depth limit), all references, and source. Broader than lsp-explore: accepts files, synthesizes multi-symbol relationships, and produces a navigable dependency map.
MCP server Claude CodeCodexCursor +2
Stateful LSP runtime for AI agents — 50+ tools across 30+ languages via MCP. Runs locally from the @blackwell-systems/agent-lsp npm package.
MCP server Gemini CLI
MCP server "lsp" as configured in blackwell-systems/agent-lsp. Launched with agent-lsp go:gopls.
MCP server Claude CodeCodexCursor +2
MCP server "knowing" as configured in blackwell-systems/knowing. Launched with knowing mcp --watch.
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: