{
  "schemaVersion": "1.0",
  "item": {
    "slug": "arc-skill-differ",
    "name": "Arc Skill Differ",
    "source": "tencent",
    "type": "skill",
    "category": "其他",
    "sourceUrl": "https://clawhub.ai/Trypto1019/arc-skill-differ",
    "canonicalUrl": "https://clawhub.ai/Trypto1019/arc-skill-differ",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadMode": "redirect",
    "downloadUrl": "/downloads/arc-skill-differ",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=arc-skill-differ",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "installMethod": "Manual import",
    "extraction": "Extract archive",
    "prerequisites": [
      "OpenClaw"
    ],
    "packageFormat": "ZIP package",
    "includedAssets": [
      "SKILL.md",
      "scripts/differ.py"
    ],
    "primaryDoc": "SKILL.md",
    "quickSetup": [
      "Download the package from Yavira.",
      "Extract the archive and review SKILL.md first.",
      "Import or place the package into your OpenClaw setup."
    ],
    "agentAssist": {
      "summary": "Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.",
      "steps": [
        "Download the package from Yavira.",
        "Extract it into a folder your agent can access.",
        "Paste one of the prompts below and point your agent at the extracted folder."
      ],
      "prompts": [
        {
          "label": "New install",
          "body": "I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete."
        },
        {
          "label": "Upgrade existing",
          "body": "I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run."
        }
      ]
    },
    "sourceHealth": {
      "source": "tencent",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-23T16:43:11.935Z",
      "expiresAt": "2026-04-30T16:43:11.935Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=4claw-imageboard",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=4claw-imageboard",
        "contentDisposition": "attachment; filename=\"4claw-imageboard-1.0.1.zip\"",
        "redirectLocation": null,
        "bodySnippet": null
      },
      "scope": "source",
      "summary": "Source download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this source.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/arc-skill-differ"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    },
    "downloadPageUrl": "https://openagent3.xyz/downloads/arc-skill-differ",
    "agentPageUrl": "https://openagent3.xyz/skills/arc-skill-differ/agent",
    "manifestUrl": "https://openagent3.xyz/skills/arc-skill-differ/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/arc-skill-differ/agent.md"
  },
  "agentAssist": {
    "summary": "Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.",
    "steps": [
      "Download the package from Yavira.",
      "Extract it into a folder your agent can access.",
      "Paste one of the prompts below and point your agent at the extracted folder."
    ],
    "prompts": [
      {
        "label": "New install",
        "body": "I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete."
      },
      {
        "label": "Upgrade existing",
        "body": "I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run."
      }
    ]
  },
  "documentation": {
    "source": "clawhub",
    "primaryDoc": "SKILL.md",
    "sections": [
      {
        "title": "Skill Differ",
        "body": "Compare two versions of an OpenClaw skill to find security-relevant changes before updating."
      },
      {
        "title": "Why This Exists",
        "body": "A skill that was clean at v1.0 could add credential stealing in v1.1. The skill scanner catches known bad patterns in a single version. The differ catches new capabilities between versions — things a skill couldn't do before but can do now."
      },
      {
        "title": "Diff two skill directories",
        "body": "python3 {baseDir}/scripts/differ.py diff --old ~/.openclaw/skills/some-skill/ --new /tmp/some-skill-v2/"
      },
      {
        "title": "Diff with JSON output",
        "body": "python3 {baseDir}/scripts/differ.py diff --old ./v1/ --new ./v2/ --json"
      },
      {
        "title": "Quick summary only (no file details)",
        "body": "python3 {baseDir}/scripts/differ.py diff --old ./v1/ --new ./v2/ --summary"
      },
      {
        "title": "New Capabilities Added",
        "body": "Network access (skill didn't make HTTP requests before, now it does)\nCredential access (didn't read env vars or API keys before, now it does)\nFile system access (wasn't touching home directory, now it is)\nCode execution patterns (eval/exec that didn't exist before)\nData exfiltration (new outbound POST requests)\nObfuscation (new encoded/obfuscated content)"
      },
      {
        "title": "File Changes",
        "body": "New files added (especially in scripts/)\nDeleted files (could remove safety checks)\nModified files with security-relevant diffs"
      },
      {
        "title": "Recommendations",
        "body": "SAFE — No new security-relevant capabilities. Update freely.\nREVIEW — New capabilities detected. Read the changes before updating.\nBLOCK — Critical new capabilities (code execution, credential access). Manual audit required."
      },
      {
        "title": "Tips",
        "body": "Always diff before updating any third-party skill\nPair with skill-scanner: scan before first install, diff before every update\nPay attention to new files — attackers add payloads in new scripts\nIf a \"bug fix\" update adds network access, that's suspicious"
      }
    ],
    "body": "Skill Differ\n\nCompare two versions of an OpenClaw skill to find security-relevant changes before updating.\n\nWhy This Exists\n\nA skill that was clean at v1.0 could add credential stealing in v1.1. The skill scanner catches known bad patterns in a single version. The differ catches new capabilities between versions — things a skill couldn't do before but can do now.\n\nCommands\nDiff two skill directories\npython3 {baseDir}/scripts/differ.py diff --old ~/.openclaw/skills/some-skill/ --new /tmp/some-skill-v2/\n\nDiff with JSON output\npython3 {baseDir}/scripts/differ.py diff --old ./v1/ --new ./v2/ --json\n\nQuick summary only (no file details)\npython3 {baseDir}/scripts/differ.py diff --old ./v1/ --new ./v2/ --summary\n\nWhat It Detects\nNew Capabilities Added\nNetwork access (skill didn't make HTTP requests before, now it does)\nCredential access (didn't read env vars or API keys before, now it does)\nFile system access (wasn't touching home directory, now it is)\nCode execution patterns (eval/exec that didn't exist before)\nData exfiltration (new outbound POST requests)\nObfuscation (new encoded/obfuscated content)\nFile Changes\nNew files added (especially in scripts/)\nDeleted files (could remove safety checks)\nModified files with security-relevant diffs\nRecommendations\nSAFE — No new security-relevant capabilities. Update freely.\nREVIEW — New capabilities detected. Read the changes before updating.\nBLOCK — Critical new capabilities (code execution, credential access). Manual audit required.\nTips\nAlways diff before updating any third-party skill\nPair with skill-scanner: scan before first install, diff before every update\nPay attention to new files — attackers add payloads in new scripts\nIf a \"bug fix\" update adds network access, that's suspicious"
  },
  "trust": {
    "sourceLabel": "tencent",
    "provenanceUrl": "https://clawhub.ai/Trypto1019/arc-skill-differ",
    "publisherUrl": "https://clawhub.ai/Trypto1019/arc-skill-differ",
    "owner": "Trypto1019",
    "version": "1.0.0",
    "license": null,
    "verificationStatus": "Indexed source record"
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/arc-skill-differ",
    "downloadUrl": "https://openagent3.xyz/downloads/arc-skill-differ",
    "agentUrl": "https://openagent3.xyz/skills/arc-skill-differ/agent",
    "manifestUrl": "https://openagent3.xyz/skills/arc-skill-differ/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/arc-skill-differ/agent.md"
  }
}