io.github.MMasey/atag-mcp
NPM · ATAG-MCP · SCANNED AUG 3
ATAG 2.0 (Authoring Tool Accessibility Guidelines) guidance for authoring tool developers
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 (95 of 99), 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 (95 of 99), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to MMasey/atag-mcp). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 26 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability77
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 754 tokens (~58/item across 13 items; 13 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage93
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 79% of tool parameters carry a description.Partial
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 · atag-mcp
claude mcp add mmasey-atag-mcp -- npx -y atag-mcp
codex mcp add mmasey-atag-mcp -- npx -y atag-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"mmasey-atag-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"atag-mcp"
],
"enabled": true
}
}
} openclaw mcp add mmasey-atag-mcp --command npx --arg -y --arg atag-mcp
mcp_servers:
mmasey-atag-mcp:
command: "npx"
args: ["-y", "atag-mcp"] {
"mcpServers": {
"mmasey-atag-mcp": {
"command": "npx",
"args": [
"-y",
"atag-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 +70
- Install scripts: unverified → pass ▲ security
- Provenance: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Malware scan: unverified → pass ▲ security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- The attested source repository moved: MMasey/atag-mcp security
- Security disclosure: fail → unverified ▼ functional
- Schema quality: unverified → excellent ▲ functional
- Tool coverage: unverified → 100 ▲ 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 −15
- Tool coverage: 100 → unverified ▼ functional
- First check of Schema quality: unverified functional
- 31 Jul 26 −25
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → 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 3 Aug 2026 · Analysed npm/[email protected]
Provenance verified
Ecosystem: npm · Outcome: verified
Reason: verified
- Source repo:
- MMasey/atag-mcp
- Certificate issuer:
- https://token.actions.githubusercontent.com
- Certificate SAN:
- https://github.com/MMasey/atag-mcp/.github/workflows/publish.yml@refs/tags/v1.0.2
- Rekor log index:
- 2102779190
- Predicate type:
- https://slsa.dev/provenance/v1
- Subject digest:
- sha512:d13b5e4e06eb678460e9ca7fde12593689adaf3a342707ee3468955ac667f48345bd9a850273f7b92f4f67ad7ab75ef702492fc9fcffae6f70fecdccf
- Discovery method:
- attestation_endpoint
Dependencies 95 packages
95 packages in the resolved dependency tree · 95 deprecated · 29 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.
explain-atag ~42
Get an overview of ATAG 2.0 — what it is, who it applies to, how it differs from WCAG, and its two-part structure.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get-criteria-by-level ~76
Get all ATAG 2.0 success criteria at a specific conformance level (A, AA, or AAA). Optionally filter by part.
| Name | Type | Req | Description |
|---|---|---|---|
| level | string | yes | ATAG conformance level |
| part | string | — | Part A (tool UI accessibility) or Part B (supporting accessible content production) |
No output schema declared.
No examples provided.
get-criterion ~81
Get full details for a specific ATAG 2.0 success criterion by ID (e.g. 'B.2.3.1' or 'A.3.1.2'), including description, conformance level, and implementation notes.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Success criterion ID, e.g. 'B.2.3.1' |
No output schema declared.
No examples provided.
get-glossary-term ~50
Get the definition of a specific ATAG 2.0 term.
| Name | Type | Req | Description |
|---|---|---|---|
| term | string | yes | The term to look up, e.g. 'authoring tool' or 'editing-view' |
No output schema declared.
No examples provided.
get-guidance ~93
Given a description of an authoring tool feature or scenario, return the most relevant ATAG 2.0 success criteria. Use this to find which criteria apply when building a specific feature.
| Name | Type | Req | Description |
|---|---|---|---|
| description | string | yes | Describe the authoring tool feature or scenario, e.g. 'We are building an image upload dialog that lets authors insert images into content' or 'Our tool automatically generates HTML from a visual lay… |
No output schema declared.
No examples provided.
get-guideline ~64
Get full details for a specific ATAG 2.0 guideline by ID (e.g. 'B.2.3'), including its description and all child success criteria.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Guideline ID, e.g. 'B.2.3' |
No output schema declared.
No examples provided.
get-server-info ~34
Get information about this ATAG MCP server including the total number of principles, guidelines, success criteria, and glossary terms available.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list-glossary-terms ~23
List all ATAG 2.0 glossary terms.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list-guidelines ~72
List ATAG 2.0 guidelines. Optionally filter by part (A or B) and/or principle ID (e.g. 'A.3').
| Name | Type | Req | Description |
|---|---|---|---|
| part | string | — | Part A (tool UI accessibility) or Part B (supporting accessible content production) |
| principleId | string | — | — |
No output schema declared.
No examples provided.
list-parts ~26
List both parts of ATAG 2.0 with their descriptions and principle counts.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list-principles ~52
List ATAG 2.0 principles. Optionally filter by part (A or B).
| Name | Type | Req | Description |
|---|---|---|---|
| part | string | — | Part A (tool UI accessibility) or Part B (supporting accessible content production) |
No output schema declared.
No examples provided.
list-success-criteria ~87
List ATAG 2.0 success criteria. Filter by part, principle ID, guideline ID, and/or conformance level.
| Name | Type | Req | Description |
|---|---|---|---|
| guidelineId | string | — | — |
| level | string | — | ATAG conformance level |
| part | string | — | Part A (tool UI accessibility) or Part B (supporting accessible content production) |
| principleId | string | — | — |
No output schema declared.
No examples provided.
search-atag ~54
Search across all ATAG 2.0 content (principles, guidelines, success criteria, glossary) using keywords.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | Search query, e.g. 'keyboard access' or 'alternative text' |
No output schema declared.
No examples provided.