# io.github.socraticstatic/chart-color-audit (npm · chart-color-audit)

CI-friendly accessibility audit for chart color palettes: WCAG contrast, CVD simulation, OKLab ΔE.

- Trust score: 94/100 (high trust)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-21

## Components

- npm · `chart-color-audit`: 94/100 (this document), [markdown](https://verifymcp.io/servers/socraticstatic-chart-color-audit/chart-color-audit.md), [page](https://verifymcp.io/servers/socraticstatic-chart-color-audit/chart-color-audit)

## Channel facts

- Registry: `npm`
- Package: `chart-color-audit`
- Version: `0.2.4`
- 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 2026-09-21.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 31 of 97 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to socraticstatic/chart-color-audit).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 35 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 245 tokens (~122/item across 2 items; 2 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 97/100
  - Stability observed for 29 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the io.github.socraticstatic/chart-color-audit MCP server?

io.github.socraticstatic/chart-color-audit runs locally as an npm package, launched with npx -y chart-color-audit. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add socraticstatic-chart-color-audit -- npx -y chart-color-audit
```

### Cursor

```json
{
  "mcpServers": {
    "socraticstatic-chart-color-audit": {
      "command": "npx",
      "args": [
        "-y",
        "chart-color-audit"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "socraticstatic-chart-color-audit": {
      "command": "npx",
      "args": [
        "-y",
        "chart-color-audit"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add socraticstatic-chart-color-audit -- npx -y chart-color-audit
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "socraticstatic-chart-color-audit": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "chart-color-audit"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add socraticstatic-chart-color-audit --command npx --arg -y --arg chart-color-audit
```

### Hermes

```yaml
mcp_servers:
  socraticstatic-chart-color-audit:
    command: "npx"
    args: ["-y", "chart-color-audit"]
```

### Netclaw

```json
{
  "McpServers": {
    "socraticstatic-chart-color-audit": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "chart-color-audit"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add socraticstatic-chart-color-audit -t stdio -c npx -a -y chart-color-audit
```

### Other

```json
{
  "mcpServers": {
    "socraticstatic-chart-color-audit": {
      "command": "npx",
      "args": [
        "-y",
        "chart-color-audit"
      ]
    }
  }
}
```

## 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.

### 2026-09-20 (score 94, +1)

No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 93, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 92, −3)

- [functional] Stability: pass → 0.80

### 2026-09-15 (score 95, +1)

- [security] Stability: 0.97 → pass

### 2026-09-13 (score 94, +1)

No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-11 (score 93, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-09 (score 92, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-07 (score 91, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (2)

### `audit_palette` (~180 tokens)

Audit a chart color palette

Audit chart colors for accessibility: pairwise OKLab ΔE separation under normal vision, deuteranopia, protanopia, tritanopia (published Machado 2009 matrices) and grayscale, plus WCAG 2.2 SC 1.4.11 non-text contrast (≥3:1) against the background. Returns per-vision findings with human-word bands and a pass/fail verdict with reasons.

Input parameters:

- `background` (string, required): Background color the chart marks render on.
- `colors` (array, required): Palette colors in slot order — any CSS color syntax (#hex, hsl(), rgb(), named).
- `mode` (string): Floors preset. perceptual (default) fails what an eye can't tell apart (ΔE<2); redundant-encodings for palettes paired with dash/decal/shape channels; strict demands clear separation.

### `audit_tokens` (~65 tokens)

Audit chart tokens from a config file

Run the same audit against a chartaudit.config.json on disk — the config names a CSS or design-tokens file plus which tokens are the categorical palette, background, and semantic roles.

Input parameters:

- `config_path` (string, required): Absolute or cwd-relative path to chartaudit.config.json.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/socraticstatic-chart-color-audit/chart-color-audit#diagnostics

## Score history

- 2026-09-21: 94
- 2026-09-20: 94
- 2026-09-19: 93
- 2026-09-18: 93
- 2026-09-17: 92
- 2026-09-16: 92
- 2026-09-15: 95
- 2026-09-14: 94
- 2026-09-13: 94
- 2026-09-12: 93
- 2026-09-11: 93
- 2026-09-10: 92
- 2026-09-09: 92
- 2026-09-08: 91
- 2026-09-07: 91
- 2026-09-06: 90
- 2026-09-05: 90
- 2026-09-04: 89
- 2026-09-03: 89
- 2026-09-02: 89
- 2026-09-01: 88
- 2026-08-31: 88
- 2026-08-30: 87
- 2026-08-29: 87
- 2026-08-28: 86
- 2026-08-27: 86
- 2026-08-26: 85
- 2026-08-25: 84
- 2026-08-24: 83
- 2026-08-23: 79

## Common questions

### What is the io.github.socraticstatic/chart-color-audit MCP server?

io.github.socraticstatic/chart-color-audit is an MCP server listed in the public MCP registry as io.github.socraticstatic/chart-color-audit. CI-friendly accessibility audit for chart color palettes: WCAG contrast, CVD simulation, OKLab ΔE. This page covers its npm package (chart-color-audit).

### Is the io.github.socraticstatic/chart-color-audit MCP server safe to use?

io.github.socraticstatic/chart-color-audit scores 94 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 21 September 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.socraticstatic/chart-color-audit MCP server expose?

io.github.socraticstatic/chart-color-audit exposes 2 tools: audit_palette, audit_tokens. Their descriptions and schemas cost roughly 245 tokens of context every time the server is loaded.

### Is the io.github.socraticstatic/chart-color-audit MCP server still maintained?

io.github.socraticstatic/chart-color-audit is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.socraticstatic/chart-color-audit MCP server under?

io.github.socraticstatic/chart-color-audit declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/chart-color-audit
- Socket report: https://socket.dev/npm/package/chart-color-audit
- Repository: https://github.com/socraticstatic/chart-color-audit
- Changelog RSS feed: https://verifymcp.io/servers/socraticstatic-chart-color-audit/chart-color-audit.xml
- Changelog JSON feed: https://verifymcp.io/servers/socraticstatic-chart-color-audit/chart-color-audit.json
- HTML version of this page: https://verifymcp.io/servers/socraticstatic-chart-color-audit/chart-color-audit