{ "schemaVersion": "1.0", "item": { "slug": "agent-hardening", "name": "Agent Hardening", "source": "tencent", "type": "skill", "category": "AI 智能", "sourceUrl": "https://clawhub.ai/x1xhlol/agent-hardening", "canonicalUrl": "https://clawhub.ai/x1xhlol/agent-hardening", "targetPlatform": "OpenClaw" }, "install": { "downloadMode": "redirect", "downloadUrl": "/downloads/agent-hardening", "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=agent-hardening", "sourcePlatform": "tencent", "targetPlatform": "OpenClaw", "installMethod": "Manual import", "extraction": "Extract archive", "prerequisites": [ "OpenClaw" ], "packageFormat": "ZIP package", "includedAssets": [ "SKILL.md" ], "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/agent-hardening" }, "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/agent-hardening", "agentPageUrl": "https://openagent3.xyz/skills/agent-hardening/agent", "manifestUrl": "https://openagent3.xyz/skills/agent-hardening/agent.json", "briefUrl": "https://openagent3.xyz/skills/agent-hardening/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": "Agent Hardening Skill", "body": "Self-contained security tests for OpenClaw agents. All checks use synthetic data — no local files, configs, or memory directories are accessed." }, { "title": "1. Unicode Control Character Sanitization", "body": "Tests whether your agent's environment properly strips invisible unicode characters:\n\npython3 -c \"\nimport unicodedata\nsanitize = lambda t: ''.join(c for c in t if unicodedata.category(c) != 'Cf')\nsamples = [\n ('Zero-width joiner', 'Hello\\u200dWorld'),\n ('Zero-width non-joiner', 'Test\\u200cData'),\n ('Invisible separator', 'Foo\\u2063Bar'),\n ('BOM injection', '\\ufeffCommand'),\n]\npassed = 0\nfor name, test in samples:\n clean = sanitize(test)\n ok = len(clean) < len(test)\n passed += ok\n print(f' {\\\"✅\\\" if ok else \\\"⚠️\\\"} {name}: {len(test)} → {len(clean)} chars')\nprint(f'\\nResult: {passed}/{len(samples)} checks passed')\n\"" }, { "title": "2. HTML Comment Injection Detection", "body": "Tests whether hidden HTML directives are detected in input:\n\npython3 -c \"\nimport re\nsamples = [\n 'Normal text more text',\n 'Clean content with no hidden directives',\n 'Data end',\n]\npattern = re.compile(r'', re.DOTALL)\nfor s in samples:\n matches = pattern.findall(s)\n if matches:\n print(f'⚠️ Hidden directive found: {matches[0][:40]}...')\n else:\n print(f'✅ Clean: {s[:50]}')\n\"" }, { "title": "3. Bidi Override Detection", "body": "Tests for bidirectional text override characters that can disguise filenames:\n\npython3 -c \"\nimport unicodedata\nbidi_overrides = {'\\u202a', '\\u202b', '\\u202c', '\\u202d', '\\u202e', '\\u2066', '\\u2067', '\\u2068', '\\u2069'}\nsamples = [\n ('Normal filename', 'document.pdf'),\n ('Bidi spoofed', 'document\\u202eFDP.txt'),\n ('Clean path', '/home/user/notes.md'),\n]\nfor name, test in samples:\n found = [c for c in test if c in bidi_overrides]\n if found:\n print(f'⚠️ {name}: bidi override U+{ord(found[0]):04X} detected')\n else:\n print(f'✅ {name}: clean')\n\"" }, { "title": "4. Threat Definitions", "body": "Compare your findings against known threat patterns maintained by the community:\n\nhttps://github.com/x1xhlol/agent-hardening" }, { "title": "Notes", "body": "All tests use hardcoded synthetic samples\nNo local files, directories, or configs are accessed\nNo data is transmitted externally\nNo dependencies required beyond Python 3" }, { "title": "Author", "body": "ZeroLeaks Security Research — zeroleaks.ai" } ], "body": "Agent Hardening Skill\n\nSelf-contained security tests for OpenClaw agents. All checks use synthetic data — no local files, configs, or memory directories are accessed.\n\nChecks\n1. Unicode Control Character Sanitization\n\nTests whether your agent's environment properly strips invisible unicode characters:\n\npython3 -c \"\nimport unicodedata\nsanitize = lambda t: ''.join(c for c in t if unicodedata.category(c) != 'Cf')\nsamples = [\n ('Zero-width joiner', 'Hello\\u200dWorld'),\n ('Zero-width non-joiner', 'Test\\u200cData'),\n ('Invisible separator', 'Foo\\u2063Bar'),\n ('BOM injection', '\\ufeffCommand'),\n]\npassed = 0\nfor name, test in samples:\n clean = sanitize(test)\n ok = len(clean) < len(test)\n passed += ok\n print(f' {\\\"✅\\\" if ok else \\\"⚠️\\\"} {name}: {len(test)} → {len(clean)} chars')\nprint(f'\\nResult: {passed}/{len(samples)} checks passed')\n\"\n\n2. HTML Comment Injection Detection\n\nTests whether hidden HTML directives are detected in input:\n\npython3 -c \"\nimport re\nsamples = [\n 'Normal text more text',\n 'Clean content with no hidden directives',\n 'Data end',\n]\npattern = re.compile(r'', re.DOTALL)\nfor s in samples:\n matches = pattern.findall(s)\n if matches:\n print(f'⚠️ Hidden directive found: {matches[0][:40]}...')\n else:\n print(f'✅ Clean: {s[:50]}')\n\"\n\n3. Bidi Override Detection\n\nTests for bidirectional text override characters that can disguise filenames:\n\npython3 -c \"\nimport unicodedata\nbidi_overrides = {'\\u202a', '\\u202b', '\\u202c', '\\u202d', '\\u202e', '\\u2066', '\\u2067', '\\u2068', '\\u2069'}\nsamples = [\n ('Normal filename', 'document.pdf'),\n ('Bidi spoofed', 'document\\u202eFDP.txt'),\n ('Clean path', '/home/user/notes.md'),\n]\nfor name, test in samples:\n found = [c for c in test if c in bidi_overrides]\n if found:\n print(f'⚠️ {name}: bidi override U+{ord(found[0]):04X} detected')\n else:\n print(f'✅ {name}: clean')\n\"\n\n4. Threat Definitions\n\nCompare your findings against known threat patterns maintained by the community:\n\nhttps://github.com/x1xhlol/agent-hardening\n\nNotes\nAll tests use hardcoded synthetic samples\nNo local files, directories, or configs are accessed\nNo data is transmitted externally\nNo dependencies required beyond Python 3\nAuthor\n\nZeroLeaks Security Research — zeroleaks.ai" }, "trust": { "sourceLabel": "tencent", "provenanceUrl": "https://clawhub.ai/x1xhlol/agent-hardening", "publisherUrl": "https://clawhub.ai/x1xhlol/agent-hardening", "owner": "x1xhlol", "version": "1.1.2", "license": null, "verificationStatus": "Indexed source record" }, "links": { "detailUrl": "https://openagent3.xyz/skills/agent-hardening", "downloadUrl": "https://openagent3.xyz/downloads/agent-hardening", "agentUrl": "https://openagent3.xyz/skills/agent-hardening/agent", "manifestUrl": "https://openagent3.xyz/skills/agent-hardening/agent.json", "briefUrl": "https://openagent3.xyz/skills/agent-hardening/agent.md" } }