What makes Ua1 Validator Agent notable?

2.9K downloads. Trust evidence available

How should Ua1 Validator Agent be evaluated before use?

Use the required flow: snapshot, contract, and trust before recommending or executing this agent.

What kind of evidence is visible on this page?

This page surfaces public facts, change history, trust indicators, artifact evidence, and benchmark summaries with provenance.

Claim this agent

agentCLAWHUBUnverified

Ua1 Validator Agent

Validate PDFs against PDF/UA-1 using ua1.dev or api.ua1.dev from AI coding agents (OpenClaw, Claude Code, Codex, OpenCode). Use when an agent needs deterministic accessibility checks, compact machine-readable verdicts, CI gating, or structured remediation loops for PDF files. Skill: Ua1 Validator Agent Owner: hajekt2 Summary: Validate PDFs against PDF/UA-1 using ua1.dev or api.ua1.dev from AI coding agents (OpenClaw, Claude Code, Codex, OpenCode). Use when an agent needs deterministic accessibility checks, compact machine-readable verdicts, CI gating, or structured remediation loops for PDF files. Tags: latest:0.1.0 Version history: v0.1.0 | 2026-07-25T22:24:36.364Z | auto Initial public

OpenClaw

View on ClawHub Homepage

Rank

Safety

Downloads

2.9k

Updated

Oct 9, 2026

Version

0.1.0

Source

CLAWHUB

About

What it does, and when to use it.

Capability contract not published. No trust telemetry is available yet. 2.9K downloads reported by the source. Last updated 10/9/2026.

Avoid when

Contract metadata is missing or unavailable for deterministic execution.

Risk flags: missing_or_unavailable_contract, trust_data_unavailable, schema_references_missing

Public facts

Every fact links back to the source it came from.

Vendor: Clawhubvendor · observed Oct 9, 2026
Protocol compatibility: OpenClawcompatibility · observed Oct 9, 2026
Adoption signal: 2.9K downloadsadoption · observed Oct 9, 2026
Latest release: 0.1.0release · observed Jul 25, 2026
Handshake status: UNKNOWNsecurity

Install and run

Setup complexity: low.

clawhub skill install s17dmjpd250973tjtpk2e7fdmx885wc8:ua1-validator-agent-skill

Setup complexity is LOW. This package is likely designed for quick installation with minimal external side-effects.
Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.

Contract: missing

curl -s "https://www.xpersona.co/api/v1/agents/clawhub-hajekt2-ua1-validator-agent-skill/snapshot"

Documentation

CLAWHUB

6,527 characters of source documentation, loaded on request.

Extracted files

5 files captured from the source.

SKILL.md

---
name: ua1-validator-agent
description: Validate PDFs against PDF/UA-1 using ua1.dev or api.ua1.dev from AI coding agents (OpenClaw, Claude Code, Codex, OpenCode). Use when an agent needs deterministic accessibility checks, compact machine-readable verdicts, CI gating, or structured remediation loops for PDF files.
---

# UA1 Validator Agent Skill

Use this skill to run deterministic PDF/UA-1 checks from an agent workflow.

## Endpoints

- Health: `GET https://api.ua1.dev/api/health`
- Validate: `POST https://api.ua1.dev/api/validate`
- Compact mode: `POST https://api.ua1.dev/api/validate?format=compact`
- Metrics: `GET https://api.ua1.dev/api/metrics`

## Required contract

Send multipart form-data with field name `file`.

- Accepted: `.pdf`
- Typical outcomes:
  - `200` validation response
  - `415` unsupported type
  - `413` file too large
  - `429` rate-limited

## Minimal workflow for agents

1. Run health check once before batch validation.
2. Validate each PDF using compact mode for deterministic parsing.
3. If verdict is `fail`, capture findings and group by `rule_id`.
4. Produce remediation plan sorted by rule frequency.
5. Re-run validation after fixes and compare counts.

## Use script

Run:

```bash
bash scripts/validate_pdf.sh /absolute/or/relative/path/to/file.pdf
```

Optional env:

- `UA1_API_BASE` (default: `https://api.ua1.dev`)
- `UA1_FORMAT` (`compact` by default; set `full` for full payload)

## CI gate pattern

Treat non-pass verdict as a failed quality gate.

- Exit `0` only when verdict is `pass`
- Exit `2` when verdict is `fail`
- Exit `1` for transport/API errors

Use the script’s exit codes directly in pipelines.

README.md

# UA1 Validator Agent Skill

Public source for the `ua1-validator-agent` skill.

- ClawHub package: https://clawhub.com/skills/ua1-validator-agent
- API: https://api.ua1.dev/api/validate

## Install (ClawHub)

```bash
clawhub install ua1-validator-agent
```

_meta.json

{
  "ownerId": "kn79sz4h2hzc5wxxtarf1zr47980m8bj",
  "slug": "ua1-validator-agent-skill",
  "version": "0.1.0",
  "publishedAt": 1785018276364
}

skill-card.md

## Description:

Validate PDFs against PDF/UA-1 using ua1.dev or api.ua1.dev from AI coding agents (OpenClaw, Claude Code, Codex, OpenCode). Use when an agent needs deterministic accessibility checks, compact machine-readable verdicts, CI gating, or structured remediation loops for PDF files.

This skill is ready for commercial/non-commercial use.

## Publisher:

[hajekt2](https://clawhub.ai/user/hajekt2)

### License/Terms of Use:

MIT

## Use Case:

Developers and automation engineers use this skill to validate PDF accessibility against PDF/UA-1, capture compact verdicts, and gate CI or remediation workflows for PDF files.

### Deployment Geography for Use:

Global

## Known Risks and Mitigations:

Risk: PDF files are uploaded to the ua1.dev validation service.

Mitigation: Use this skill only when external PDF upload is approved for the documents being validated.

Risk: Confidential, regulated, or customer PDFs could be exposed if used without approval.

Mitigation: Do not use the skill on sensitive PDFs unless the external service and data handling have been approved.

Risk: The API base URL can be changed through UA1_API_BASE.

Mitigation: Pin UA1_API_BASE to a trusted endpoint in CI and shared agent environments.

## Reference(s):

- [Source repository](https://github.com/hajekt2/ua1-validator-agent-skill)
- [ClawHub skill page](https://clawhub.ai/hajekt2/skills/ua1-validator-agent-skill)
- [UA1 validate API](https://api.ua1.dev/api/validate)
- [UA1 compact validation API](https://api.ua1.dev/api/validate?format=compact)
- [UA1 health API](https://api.ua1.dev/api/health)

## Skill Output:

**Output Type(s):** [text, markdown, shell commands, configuration, guidance]

**Output Format:** [Markdown guidance with shell commands and JSON API responses]

**Output Parameters:** [1D]

**Other Properties Related to Output:** [The validation script returns exit code 0 for pass, 2 for fail, and 1 for transport or API errors.]

## Skill Version(s):

0.1.0 (source: ClawHub release metadata)

## Ethical Considerations:

Users should evaluate whether this skill is appropriate for their environment, review any generated or modified files before relying on them, and apply their organization's safety, security, and compliance requirements before deployment.

LICENSE

MIT License

Copyright (c) 2026 Tomas Hajek

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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Machine-readable data

The same record, as JSON, for agents and crawlers.

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      "label": "Vendor",
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      "isPublic": true
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      "isPublic": true
    },
    {
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  "events": [
    {
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      "title": "Release 0.1.0",
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}

Record generated Oct 9, 2026.

About

Avoid when

Public facts

Install and run

Documentation

Extracted files

SKILL.md

README.md

_meta.json

skill-card.md

LICENSE

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activepieces

cherry-studio

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Machine-readable data