# io.github.vola-trebla/sourcemap-retrace-mcp (npm · sourcemap-retrace-mcp)

Decodes minified production stack traces back to original TypeScript source using source maps.

- Trust score: 64/100 (medium)
- Change this week: +18
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `sourcemap-retrace-mcp`: 64/100 (this document), [markdown](https://verifymcp.io/servers/vola-trebla-sourcemap-retrace-mcp/sourcemap-retrace-mcp.md), [page](https://verifymcp.io/servers/vola-trebla-sourcemap-retrace-mcp/sourcemap-retrace-mcp)

## Channel facts

- Registry: `npm`
- Package: `sourcemap-retrace-mcp`
- Version: `0.2.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 74 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 500 tokens (~71/item across 7 items; 7 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### Claude

```bash
claude mcp add vola-trebla-sourcemap-retrace-mcp -- npx -y sourcemap-retrace-mcp
```

### Codex

```bash
codex mcp add vola-trebla-sourcemap-retrace-mcp -- npx -y sourcemap-retrace-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "vola-trebla-sourcemap-retrace-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "sourcemap-retrace-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add vola-trebla-sourcemap-retrace-mcp --command npx --arg -y --arg sourcemap-retrace-mcp
```

### Hermes

```yaml
mcp_servers:
  vola-trebla-sourcemap-retrace-mcp:
    command: "npx"
    args: ["-y", "sourcemap-retrace-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "vola-trebla-sourcemap-retrace-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "sourcemap-retrace-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-02 (score 64, +59)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Schema quality: unverified → good
- [functional] Licence: MIT

### 2026-08-01 (score 5, −16)

- [functional regression] Tool coverage: 100 → unverified

### 2026-07-31 (score 21, −7)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 28, +4)

- [security regression] Malware scan: pass → unverified
- [functional improvement] Tool coverage: unverified → 100

### 2026-07-28 (score 24, −22)

- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (7)

### `retrace_stack` (~74 tokens)

Decode a minified production stack trace back to original TypeScript source files, lines, and columns.

Input parameters:

- `sourcemapDir` (string, required): Directory containing .map files (or the dist directory where .js.map files live)
- `stackTrace` (string, required): The raw minified error stack trace (multi-line string)

### `retrieve_code_context` (~85 tokens)

Show the original source code lines surrounding a mapped error location.

Input parameters:

- `column` (integer): 0-based column number
- `contextLines` (integer): Number of lines to show before and after the target line
- `line` (integer, required): 1-based line number in the original source
- `originalFile` (string, required): Absolute path to the original TypeScript source file

### `audit_sourcemap_match` (~50 tokens)

Validate that .map files in a dist directory align with their compiled .js counterparts.

Input parameters:

- `distDir` (string, required): Path to the dist/build directory containing .js and .js.map files

### `verify_debug_id_integrity` (~57 tokens)

Validate that a minified production bundle matches its source map using embedded Debug IDs.

Input parameters:

- `jsPath` (string, required): Absolute path to the compiled JS file
- `mapPath` (string, required): Absolute path to the .map file

### `normalize_bundler_paths` (~81 tokens)

Resolve dynamic bundle references (like webpack://, ng://, or Vite /@fs/ paths) to raw files.

Input parameters:

- `projectRoot` (string): Root directory of the project
- `rawPath` (string, required): The raw source path reference from the source map
- `sourceRoot` (string): Source root configuration from the source map

### `ingest_telemetry_payload` (~86 tokens)

Directly ingest Sentry, Bugsnag, or Datadog crash dumps and return fully retraced stack frames.

Input parameters:

- `inAppOnly` (boolean): Only return frames marked as part of the application source code
- `payload` (string, required): The raw JSON string of the crash telemetry event
- `sourcemapDir` (string, required): Directory containing corresponding .map files

### `surface_async_causality` (~67 tokens)

Detect and trace across async boundaries (e.g. await, processTicksAndMicrotasks) to locate scheduling origins.

Input parameters:

- `sourcemapDir` (string, required): Directory containing corresponding .map files
- `stackTrace` (string, required): The minified stack trace with async boundary markers

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/vola-trebla-sourcemap-retrace-mcp/sourcemap-retrace-mcp#diagnostics

## Score history

- 2026-08-03: 64
- 2026-08-02: 64
- 2026-08-01: 5
- 2026-07-31: 21
- 2026-07-30: 28
- 2026-07-28: 24
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/sourcemap-retrace-mcp
- Socket report: https://socket.dev/npm/package/sourcemap-retrace-mcp
- Repository: https://github.com/vola-trebla/sourcemap-retrace-mcp
- Changelog RSS feed: https://verifymcp.io/servers/vola-trebla-sourcemap-retrace-mcp/sourcemap-retrace-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/vola-trebla-sourcemap-retrace-mcp/sourcemap-retrace-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/vola-trebla-sourcemap-retrace-mcp/sourcemap-retrace-mcp