How should a11y-bridge be evaluated before use?

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

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.

Crawler Summary

a11y-bridge answer-first brief

Control Android devices via Accessibility Service HTTP bridge. 100x faster than screencap + uiautomator dump. Read UI tree in 50ms, click elements by text/id/description. Use when automating Android apps, controlling a phone via ADB, or building an AI-powered phone agent. Replaces the slow screenshot → parse → coordinate-tap cycle with instant semantic access. --- name: a11y-bridge description: Control Android devices via Accessibility Service HTTP bridge. 100x faster than screencap + uiautomator dump. Read UI tree in 50ms, click elements by text/id/description. Use when automating Android apps, controlling a phone via ADB, or building an AI-powered phone agent. Replaces the slow screenshot → parse → coordinate-tap cycle with instant semantic access. --- A11y Bridge — Andr Published capability contract available. No trust telemetry is available yet. 1 GitHub stars reported by the source. Last updated 3/1/2026.

Freshness

Last checked 3/1/2026

Best For

Contract is available with explicit auth and schema references.

Not Ideal For

a11y-bridge is not ideal for teams that need stronger public trust telemetry, lower setup complexity, or more explicit contract coverage before production rollout.

Evidence Sources Checked

editorial-content, capability-contract, runtime-metrics, public facts pack

Card Facts Snapshot Contract Trust

Claim this agent

Agent DossierGitHubSafety: 89/100

a11y-bridge

OpenClawself-declared

Public facts

Change events

Artifacts

Freshness

Mar 1, 2026

Verifiededitorial-contentNo verified compatibility signals1 GitHub stars

Published capability contract available. No trust telemetry is available yet. 1 GitHub stars reported by the source. Last updated 3/1/2026.

1 GitHub starsSchema refs publishedTrust evidence available

Trust score

Unknown

Compatibility

OpenClaw

Freshness

Mar 1, 2026

Vendor

4ier

Artifacts

Benchmarks

Last release

Unpublished

Executive Summary

Key links, install path, and a quick operational read before the deeper crawl record.

Verifiededitorial-content

Summary

Published capability contract available. No trust telemetry is available yet. 1 GitHub stars reported by the source. Last updated 3/1/2026.

View Source

Setup snapshot

git clone https://github.com/4ier/a11y-bridge.git

1
Setup complexity is LOW. This package is likely designed for quick installation with minimal external side-effects.
2
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.

Evidence Ledger

Everything public we have scraped or crawled about this agent, grouped by evidence type with provenance.

Verifiededitorial-content

Vendor (1)

Vendor

4ier

profilemedium

Observed Mar 1, 2026Source link Provenance

Compatibility (2)

Protocol compatibility

OpenClaw

contractmedium

Observed Feb 24, 2026Source link Provenance

Auth modes

api_key

contracthigh

Observed Feb 24, 2026Source link Provenance

Artifact (1)

Machine-readable schemas

OpenAPI or schema references published

contracthigh

Observed Feb 24, 2026Source link Provenance

Adoption (1)

Adoption signal

1 GitHub stars

profilemedium

Observed Mar 1, 2026Source link Provenance

Security (1)

Handshake status

UNKNOWN

trustmedium

Observed unknownSource link Provenance

Integration (1)

Crawlable docs

6 indexed pages on the official domain

search_documentmedium

Observed Apr 15, 2026Source link Provenance

Release & Crawl Timeline

Merged public release, docs, artifact, benchmark, pricing, and trust refresh events.

Self-declaredagent-index

Docs Update

Docs refreshed: Sign in to GitHub · GitHub

search_documentmedium

Fresh crawlable documentation was indexed for the official domain.

Observed Apr 15, 2026

Artifacts Archive

Extracted files, examples, snippets, parameters, dependencies, permissions, and artifact metadata.

Self-declaredGITHUB OPENCLEW

Extracted files

Examples

Snippets

Languages

typescript

Parameters

Executable Examples

bash

curl http://localhost:7333/ping

bash

# Install
adb install openclaw-a11y.apk

# Enable accessibility service
adb shell settings put secure enabled_accessibility_services \
  com.openclaw.a11y/.ClawAccessibilityService
adb shell settings put secure accessibility_enabled 1

# Forward port
adb forward tcp:7333 tcp:7333

# Verify
curl http://localhost:7333/ping

bash

chmod +x build.sh && ./build.sh

bash

curl http://localhost:7333/screen

bash

curl 'http://localhost:7333/screen?compact'

bash

# Full UI tree
curl http://localhost:7333/screen

# Compact mode (only interactive/text elements)
curl 'http://localhost:7333/screen?compact'

Docs & README

Full documentation captured from public sources, including the complete README when available.

Self-declaredGITHUB OPENCLEW

Docs source

GITHUB OPENCLEW

Editorial quality

ready

Full README

name: a11y-bridge description: Control Android devices via Accessibility Service HTTP bridge. 100x faster than screencap + uiautomator dump. Read UI tree in 50ms, click elements by text/id/description. Use when automating Android apps, controlling a phone via ADB, or building an AI-powered phone agent. Replaces the slow screenshot → parse → coordinate-tap cycle with instant semantic access.

A11y Bridge — Android Accessibility HTTP Bridge

Control Android devices through a 16KB Accessibility Service that exposes the live UI tree over HTTP (localhost:7333). ~50ms to read any screen, click by text without coordinate math.

Prerequisites

Android device connected via USB with USB debugging enabled
ADB installed and accessible in PATH
Android SDK (build-tools 34, platform android-34) — only needed to build from source

Setup

Install pre-built APK

Download the latest APK from Releases, then:

# Install
adb install openclaw-a11y.apk

# Enable accessibility service
adb shell settings put secure enabled_accessibility_services \
  com.openclaw.a11y/.ClawAccessibilityService
adb shell settings put secure accessibility_enabled 1

# Forward port
adb forward tcp:7333 tcp:7333

# Verify
curl http://localhost:7333/ping

Build from source (optional)

chmod +x build.sh && ./build.sh

Usage

Read screen (~50ms)

# Full UI tree
curl http://localhost:7333/screen

# Compact mode (only interactive/text elements)
curl 'http://localhost:7333/screen?compact'

Returns JSON with all UI elements: text, bounds, clickable, editable, etc.

Click by text

# Click element containing "Settings"
curl -X POST http://localhost:7333/click \
  -H "Content-Type: application/json" \
  -d '{"text": "Settings"}'

# Click by resource ID
curl -X POST http://localhost:7333/click -d '{"id": "com.app:id/send"}'

# Click by content description
curl -X POST http://localhost:7333/click -d '{"desc": "Navigate up"}'

Tap coordinates

curl -X POST http://localhost:7333/tap -d '{"x": 540, "y": 960}'

Health check

curl http://localhost:7333/ping

Workflow

Read: curl http://localhost:7333/screen → JSON with all UI elements
Find: Locate target element by text/role in the JSON response
Act: curl -X POST /click -d '{"text":"Send"}' → click by text, no coordinates
Repeat

Multi-device support

When multiple devices are connected, specify the target with -s <serial> for all ADB commands:

adb -s <serial> forward tcp:7333 tcp:7333

API Reference

| Endpoint | Method | Description | |----------|--------|-------------| | /ping | GET | Health check | | /screen | GET | Full UI tree as JSON. Add ?compact for interactive elements only | | /click | POST | Click by text, id, or desc (JSON body) | | /tap | POST | Tap coordinates x, y (JSON body) |

Performance

| | uiautomator dump | A11y Bridge | |---|---|---| | Read UI | 3-5 seconds | ~50ms | | Click | Calculate bounds → input tap x y | {"text": "OK"} | | Full cycle | 5-8 seconds | 100-200ms |

Fallback

If the A11y Bridge service is not running (check with /ping), fall back to traditional ADB commands:

adb shell uiautomator dump /sdcard/ui.xml && adb pull /sdcard/ui.xml
adb shell input tap <x> <y>

Contract & API

Machine endpoints, protocol fit, contract coverage, invocation examples, and guardrails for agent-to-agent use.

Verifiedcapability-contract

Endpoints

Dossier API Snapshot API Contract API Trust API

Contract coverage

Status

ready

Auth

api_key

Streaming

Data region

global

Protocol support

OpenClaw: self-declared

Requires: openclew, lang:typescript

Forbidden: none

Guardrails

Operational confidence: medium

Contract is available with explicit auth and schema references.

Trust confidence is not low and verification freshness is acceptable.

Invocation examples

curl -s "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/snapshot"

curl -s "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/contract"

curl -s "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/trust"

Reliability & Benchmarks

Trust and runtime signals, benchmark suites, failure patterns, and practical risk constraints.

Missingruntime-metrics

Trust signals

Handshake

UNKNOWN

Confidence

unknown

Attempts 30d

unknown

Fallback rate

unknown

Runtime metrics

Observed P50

unknown

Observed P95

unknown

Rate limit

unknown

Estimated cost

unknown

No benchmark suites or observed failure patterns are available.

Media & Demo

Every public screenshot, visual asset, demo link, and owner-provided destination tied to this agent.

Missingno-media

No screenshots, media assets, or demo links are available.

Related Agents

Neighboring agents from the same protocol and source ecosystem for comparison and shortlist building.

Self-declaredprotocol-neighbors

GITHUB_REPOSactivepieces

Rank

AI Agents & MCPs & AI Workflow Automation • (~400 MCP servers for AI agents) • AI Automation / AI Agent with MCPs • AI Workflows & AI Agents • MCPs for AI Agents

Traction

No public download signal

Freshness

Updated 2d ago

OPENCLAW

GITHUB_REPOScherry-studio

Rank

AI productivity studio with smart chat, autonomous agents, and 300+ assistants. Unified access to frontier LLMs

Traction

No public download signal

Freshness

Updated 5d ago

MCPOPENCLAW

GITHUB_REPOSAionUi

Rank

Free, local, open-source 24/7 Cowork app and OpenClaw for Gemini CLI, Claude Code, Codex, OpenCode, Qwen Code, Goose CLI, Auggie, and more | 🌟 Star if you like it!

Traction

No public download signal

Freshness

Updated 6d ago

MCPOPENCLAW

GITHUB_REPOSCopilotKit

Rank

The Frontend for Agents & Generative UI. React + Angular

Traction

No public download signal

Freshness

Updated 23d ago

OPENCLAW

Machine Appendix

Contract JSON

{
  "contractStatus": "ready",
  "authModes": [
    "api_key"
  ],
  "requires": [
    "openclew",
    "lang:typescript"
  ],
  "forbidden": [],
  "supportsMcp": false,
  "supportsA2a": false,
  "supportsStreaming": false,
  "inputSchemaRef": "https://github.com/4ier/a11y-bridge#input",
  "outputSchemaRef": "https://github.com/4ier/a11y-bridge#output",
  "dataRegion": "global",
  "contractUpdatedAt": "2026-02-24T19:44:16.257Z",
  "sourceUpdatedAt": "2026-02-24T19:44:16.257Z",
  "freshnessSeconds": 4420341
}

Invocation Guide

{
  "preferredApi": {
    "snapshotUrl": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/snapshot",
    "contractUrl": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/contract",
    "trustUrl": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/trust"
  },
  "curlExamples": [
    "curl -s \"https://xpersona.co/api/v1/agents/4ier-a11y-bridge/snapshot\"",
    "curl -s \"https://xpersona.co/api/v1/agents/4ier-a11y-bridge/contract\"",
    "curl -s \"https://xpersona.co/api/v1/agents/4ier-a11y-bridge/trust\""
  ],
  "jsonRequestTemplate": {
    "query": "summarize this repo",
    "constraints": {
      "maxLatencyMs": 2000,
      "protocolPreference": [
        "OPENCLEW"
      ]
    }
  },
  "jsonResponseTemplate": {
    "ok": true,
    "result": {
      "summary": "...",
      "confidence": 0.9
    },
    "meta": {
      "source": "GITHUB_OPENCLEW",
      "generatedAt": "2026-04-16T23:36:37.909Z"
    }
  },
  "retryPolicy": {
    "maxAttempts": 3,
    "backoffMs": [
      500,
      1500,
      3500
    ],
    "retryableConditions": [
      "HTTP_429",
      "HTTP_503",
      "NETWORK_TIMEOUT"
    ]
  }
}

Trust JSON

{
  "status": "unavailable",
  "handshakeStatus": "UNKNOWN",
  "verificationFreshnessHours": null,
  "reputationScore": null,
  "p95LatencyMs": null,
  "successRate30d": null,
  "fallbackRate": null,
  "attempts30d": null,
  "trustUpdatedAt": null,
  "trustConfidence": "unknown",
  "sourceUpdatedAt": null,
  "freshnessSeconds": null
}

Capability Matrix

{
  "rows": [
    {
      "key": "OPENCLEW",
      "type": "protocol",
      "support": "unknown",
      "confidenceSource": "profile",
      "notes": "Listed on profile"
    },
    {
      "key": "when",
      "type": "capability",
      "support": "supported",
      "confidenceSource": "profile",
      "notes": "Declared in agent profile metadata"
    }
  ],
  "flattenedTokens": "protocol:OPENCLEW|unknown|profile capability:when|supported|profile"
}

Facts JSON

[
  {
    "factKey": "docs_crawl",
    "category": "integration",
    "label": "Crawlable docs",
    "value": "6 indexed pages on the official domain",
    "href": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceUrl": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceType": "search_document",
    "confidence": "medium",
    "observedAt": "2026-04-15T05:03:46.393Z",
    "isPublic": true
  },
  {
    "factKey": "vendor",
    "category": "vendor",
    "label": "Vendor",
    "value": "4ier",
    "href": "https://github.com/4ier/a11y-bridge",
    "sourceUrl": "https://github.com/4ier/a11y-bridge",
    "sourceType": "profile",
    "confidence": "medium",
    "observedAt": "2026-03-01T06:04:01.189Z",
    "isPublic": true
  },
  {
    "factKey": "traction",
    "category": "adoption",
    "label": "Adoption signal",
    "value": "1 GitHub stars",
    "href": "https://github.com/4ier/a11y-bridge",
    "sourceUrl": "https://github.com/4ier/a11y-bridge",
    "sourceType": "profile",
    "confidence": "medium",
    "observedAt": "2026-03-01T06:04:01.189Z",
    "isPublic": true
  },
  {
    "factKey": "protocols",
    "category": "compatibility",
    "label": "Protocol compatibility",
    "value": "OpenClaw",
    "href": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/contract",
    "sourceUrl": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/contract",
    "sourceType": "contract",
    "confidence": "medium",
    "observedAt": "2026-02-24T19:44:16.257Z",
    "isPublic": true
  },
  {
    "factKey": "auth_modes",
    "category": "compatibility",
    "label": "Auth modes",
    "value": "api_key",
    "href": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/contract",
    "sourceUrl": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/contract",
    "sourceType": "contract",
    "confidence": "high",
    "observedAt": "2026-02-24T19:44:16.257Z",
    "isPublic": true
  },
  {
    "factKey": "schema_refs",
    "category": "artifact",
    "label": "Machine-readable schemas",
    "value": "OpenAPI or schema references published",
    "href": "https://github.com/4ier/a11y-bridge#input",
    "sourceUrl": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/contract",
    "sourceType": "contract",
    "confidence": "high",
    "observedAt": "2026-02-24T19:44:16.257Z",
    "isPublic": true
  },
  {
    "factKey": "handshake_status",
    "category": "security",
    "label": "Handshake status",
    "value": "UNKNOWN",
    "href": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/trust",
    "sourceUrl": "https://xpersona.co/api/v1/agents/4ier-a11y-bridge/trust",
    "sourceType": "trust",
    "confidence": "medium",
    "observedAt": null,
    "isPublic": true
  }
]

Change Events JSON

[
  {
    "eventType": "docs_update",
    "title": "Docs refreshed: Sign in to GitHub · GitHub",
    "description": "Fresh crawlable documentation was indexed for the official domain.",
    "href": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceUrl": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceType": "search_document",
    "confidence": "medium",
    "observedAt": "2026-04-15T05:03:46.393Z",
    "isPublic": true
  }
]