# lsp-inspect

Runs a deep code quality audit on files or directories using LSP data. Flags dead symbols, swallowed errors, and concurrency flaws before release.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · ★ 165
- Author: blackwell-systems
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/blackwell-systems/agent-lsp/tree/HEAD/skills/lsp-inspect/SKILL.md
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/skills/lsp-inspect

## What it does

The skill performs static code inspection across single files, packages, or whole directories via the agent-lsp MCP server. It combines symbol references and blast radius metrics with heuristic code reading. The resulting report groups findings by severity tiers, adds confidence levels, and suggests fixes.

Concurrency safety checks span 25 languages across 4 execution models: goroutines, threads, async tasks, and actors. With the `--diff` flag, it compares current changes against main and reports only lines touched by the branch. The active language server must provide `documentSymbolProvider` and `referencesProvider` capabilities.

The audit fails without the agent-lsp MCP server. You can limit directory inspection results with `--top N` or pass `--json` to get structured machine-readable output.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add blackwell-systems/agent-lsp --skill lsp-inspect -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/lsp-inspect/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/lsp-inspect/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add blackwell-systems/agent-lsp --skill lsp-inspect -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/lsp-inspect/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add blackwell-systems/agent-lsp --skill lsp-inspect -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/lsp-inspect/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install blackwell-systems/agent-lsp lsp-inspect
```

2. **Manually: put the files in place**
- File: `.github/skills/lsp-inspect/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add blackwell-systems/agent-lsp --skill lsp-inspect -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/blackwell-systems/agent-lsp --path skills/lsp-inspect
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/lsp-inspect/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add blackwell-systems/agent-lsp --skill lsp-inspect -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/blackwell-systems/agent-lsp/tree/HEAD/skills/lsp-inspect/SKILL.md

## When to use it
- detect dead exported symbols with zero production or test references
- catch silent failures and swallowed exceptions without logging
- inspect concurrent code for unhandled panics and unprotected shared state
- isolate issues introduced on a branch compared to main with `--diff`

## Example prompts
- Audit a package: `/lsp-inspect internal/runnables/ --top 10`
- Inspect a specific file for dead symbols: `/lsp-inspect src/handlers/auth.go --checks dead_symbol,silent_failure`
- Check branch changes against main: `/lsp-inspect pkg/server.go --diff`

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 118fc8df2cded7b8.

BEGIN THIRD-PARTY FILE 118fc8df2cded7b8
````text
---
name: lsp-inspect
description: 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, coverage gaps, test coverage, doc drift, unrecovered panics, context propagation, concurrency safety) using LSP-first strategies. Concurrency checks cover 25 languages across 4 families (goroutine, thread, async, actor). Produces a severity-tiered findings report. Language-agnostic.
argument-hint: "<file-or-directory> [--checks <type1>,<type2>] [--json] [--top N] [--diff]"
user-invocable: true
allowed-tools: mcp__lsp__start_lsp mcp__lsp__open_document mcp__lsp__blast_radius mcp__lsp__find_references mcp__lsp__list_symbols mcp__lsp__inspect_symbol mcp__lsp__get_diagnostics mcp__lsp__find_callers mcp__lsp__go_to_definition mcp__lsp__get_server_capabilities mcp__lsp__get_cross_repo_references Bash
license: MIT
compatibility: Requires the agent-lsp MCP server (github.com/blackwell-systems/agent-lsp)
metadata:
  required-capabilities: documentSymbolProvider referencesProvider
  optional-capabilities: callHierarchyProvider
---

> Requires the agent-lsp MCP server.

# lsp-inspect

Full code quality audit for a file, package, or directory. Combines LSP batch
analysis (`blast_radius`) with targeted per-symbol checks and LLM-driven
heuristic analysis. Produces a severity-tiered findings report with confidence
tiers and fix suggestions.

## When to Use

- Auditing a package before a release or major refactor
- Finding dead code, untested exports, and error handling gaps in unfamiliar code
- Reviewing code quality of an external codebase for contribution opportunities
- Pre-merge quality gate on a set of changed files
- Batch inspection of an entire directory with ranked output
- Comparing branch changes against main to find newly introduced issues

## Input

```
/lsp-inspect <target> [--checks <type1>,<type2>] [--json] [--top N] [--diff]
```

**Target** can be:
- A file path: `/lsp-inspect src/handlers/auth.go`
- A directory/package: `/lsp-inspect internal/runnables/`
- Multiple targets: `/lsp-inspect pkg/a.go pkg/b.go`

**Directory detection:** When target is a directory, walk all `.go`, `.ts`, `.py`
files in it recursively. Produce a ranked report: "Top N findings sorted by
severity then blast radius."

**Flags:**
- `--checks <type1>,<type2>`: only run listed check types (default: all applicable)
- `--json`: emit structured JSON instead of markdown
- `--top N`: Maximum findings to report (default 20). Only applies to directory/batch mode.
- `--diff`: Only inspect files changed vs main branch. Filter findings to lines within the diff ranges. Output header: "New issues introduced by this branch."
````
END THIRD-PARTY FILE 118fc8df2cded7b8

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