io.github.First-CH/tools-mcp
NPM · @FIRST-CH/TOOLS-MCP · SCANNED AUG 4
MCP tools: WCAG contrast, JP char/X-weight count, WebP convert, JSON-LD, llms.txt.
Available components
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. How we score →
Supply Chain Security87
- No malware found by supply-chain analysis.Pass
- Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 14 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability72
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 734 tokens (~146/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management30
- Stability observed for 9 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · @first-ch/tools-mcp
claude mcp add first-ch-tools-mcp -- npx -y @first-ch/tools-mcp
codex mcp add first-ch-tools-mcp -- npx -y @first-ch/tools-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"first-ch-tools-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"@first-ch/tools-mcp"
],
"enabled": true
}
}
} openclaw mcp add first-ch-tools-mcp --command npx --arg -y --arg @first-ch/tools-mcp
mcp_servers:
first-ch-tools-mcp:
command: "npx"
args: ["-y", "@first-ch/tools-mcp"] {
"mcpServers": {
"first-ch-tools-mcp": {
"command": "npx",
"args": [
"-y",
"@first-ch/tools-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Aug 26 +4
- Stability: unverified → 0.27 ▲ functional
- 2 Aug 26 +30
- Provenance: unverified → fail ▼ security
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- Schema quality: unverified → excellent ▲ functional
- License: unverified → pass ▲ functional
- Dependency health: unverified → partial ▲ functional
- Maintenance: unverified → pass ▲ functional
- MCP protocol: unverified → pass ▲ functional
- Licence: MIT functional
- 1 Aug 26 −1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 −9
- Provenance: unverified → fail ▼ security
- Malware scan: pass → unverified ▼ security
- Install scripts: unverified → pass ▲ security
- License: unverified → pass ▲ functional
- Maintenance: unverified → pass ▲ functional
- Licence: MIT functional
- 27 Jul 26 45
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Aug 2026 · Analysed npm/@first-ch/[email protected]
Provenance none
Ecosystem: npm · Outcome: none
Dependencies 97 packages
97 packages in the resolved dependency tree · 97 deprecated · 31 stale.
The dependency tree was only partially resolved, so these counts may be incomplete.
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
contrast_check WCAGコントラスト比チェック ~115
文字色と背景色のWCAG 2.1コントラスト比を計算し、AA/AAA基準（通常/大テキスト・UI部品）の合否を返す。Webデザインの配色検証・アクセシビリティチェックに使う。
| Name | Type | Req | Description |
|---|---|---|---|
| bg | string | yes | 背景色（hex。例: #ffffff） |
| fg | string | yes | 文字色（hex。例: #333333 / 333 / fff） |
No output schema declared.
No examples provided.
count_chars 文字数カウント（Xウェイト対応） ~102
日本語テキストの文字数（書記素単位）・全角/半角内訳・行数と、X(Twitter)の投稿ウェイト（全角=2・半角=1・URL=一律23、上限280）を返す。SNS投稿や文字数制限のあるフォーム入力の検証に使う。
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | カウント対象のテキスト |
No output schema declared.
No examples provided.
jsonld_generate JSON-LD構造化データ生成 ~197
schema.org準拠のJSON-LD構造化データを生成する（tools.first-ch.com/jsonld/ と同一ロジック）。対応タイプ: organization（会社情報）/ faqpage（よくある質問）/ service（提供サービス）/ breadcrumb（パンくず）。空の項目は出力から自動で省略される。返り値は json オブジェクトと <script> スニペット。
| Name | Type | Req | Description |
|---|---|---|---|
| breadcrumb | array | — | type=breadcrumb のときの階層リスト（上から position 1,2,3…） |
| faq | array | — | type=faqpage のときのQ&Aリスト |
| organization | object | — | type=organization のときの項目 |
| service | object | — | type=service のときの項目 |
| type | string | yes | スキーマタイプ |
No output schema declared.
No examples provided.
llmstxt_generate llms.txt 生成 ~154
生成AI・AI検索にサイト概要を伝える llms.txt（llmstxt.org 提案フォーマット準拠）を生成する（tools.first-ch.com/llms-txt/ と同一ロジック）。生成テキストをサイトのルート（/llms.txt）に設置して使う。
| Name | Type | Req | Description |
|---|---|---|---|
| notes | string | — | 補足説明（自由記述の段落） |
| sections | array | — | リンクセクション（順に出力される） |
| siteName | string | yes | サイト名（H1になる） |
| summary | string | — | サイト概要（引用ブロックになる・改行可） |
No output schema declared.
No examples provided.
webp_convert 画像→WebP変換 ~166
PNG/JPEG画像ファイルをWebPへ変換して保存する。エンコーダは tools.first-ch.com/webp/ と同一のlibwebp WASM（品質既定80）。Web制作の画像最適化・納品前の軽量化に使う。入力は絶対パス。出力先を省略すると入力と同じ場所に拡張子.webpで保存する。
| Name | Type | Req | Description |
|---|---|---|---|
| outputDir | string | — | 出力先ディレクトリ（省略時は各入力と同じ場所） |
| paths | array | yes | 変換するPNG/JPEGファイルの絶対パスの配列 |
| quality | integer | — | 品質1-100（既定80） |
No output schema declared.
No examples provided.