{"slug":"trailofbits-code-maturity-assessor","name":"code-maturity-assessor","description":"Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations.","long_description":"---\nname: code-maturity-assessor\ndescription: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations.\n---\n\n# Code Maturity Assessor\n\n## Purpose\n\nSystematically assesses codebase maturity using Trail of Bits' 9-category framework. Provides evidence-based ratings and actionable recommendations.\n\n**Framework**: Building Secure Contracts - Code Maturity Evaluation v0.1.0\n\n---\n\n## How This Works\n\n### Phase 1: Discovery\nExplores the codebase to understand:\n- Project structure and platform\n- Contract/module files\n- Test coverage\n- Documentation availability\n\n### Phase 2: Analysis\nFor each of 9 categories, I'll:\n- **Search the code** for relevant patterns\n- **Read key files** to assess implementation\n- **Present findings** with file references\n- **Ask clarifying questions** about processes I can't see in code\n- **Determine rating** based on criteria\n\n### Phase 3: Report\nGenerates:\n- Executive summary\n- Maturity scorecard (ratings for all 9 categories)\n- Detailed analysis with evidence\n- Priority-ordered improvement roadmap\n\n---\n\n## Rating System\n\n- **Missing (0)**: Not present/not implemented\n- **Weak (1)**: Several significant improvements needed\n- **Moderate (2)**: Adequate, can be improved\n- **Satisfactory (3)**: Above average, minor improvements\n- **Strong (4)**: Exceptional, only small improvements possible\n\n**Rating Logic**:\n- ANY \"Weak\" criteria → **Weak**\n- NO \"Weak\" + SOME \"Moderate\" unmet → **Moderate**\n- ALL \"Moderate\" + SOME \"Satisfactory\" met → **Satisfactory**\n- ALL \"Satisfactory\" + exceptional practices → **Strong**\n\n---\n\n## The 9 Categories\n\nI assess 9 comprehensive categories covering all aspects of code maturity. For detailed criteria, analysis approaches, and rating thresholds, see [ASSESSMENT_CRITERIA.md](resources/ASSESSMENT_CRITERIA.md).\n\n### Quick Reference:\n\n**1. ARITHMETIC**\n- Overflow protection mechanisms\n- Precision handling and rounding\n- Formula specifications\n- Edge case testing\n\n**2. AUDITING**\n- Event definitions and coverage\n- Monitoring infrastructure\n- Incident response planning\n\n**3. AUTHENTICATION / ACCESS CONTROLS**\n- Privilege management\n- Role separation\n- Access control testing\n- Key compromise scenarios\n\n**4. COMPLEXITY MANAGEMENT**\n- Function scope and clarity\n- Cyclomatic complexity\n- Inheritance hierarchies\n- Code duplication\n\n**5. DECENTRALIZATION**\n- Centralization risks\n- Upgrade control mechanisms\n- User opt-out paths\n- Timelock/multisig patterns\n\n**6. DOCUMENTATION**\n- Specifications and architecture\n- Inline code documentation\n- User stories\n- Domain glossaries\n\n**7. TRANSACTION ORDERING RISKS**\n- MEV vulnerabilities\n- Front-running protections\n- Slippage controls\n- Oracle security\n\n**8. LOW-LEVEL MANIPULATION**\n- Assembly usage\n- Unsafe code sections\n- Low-level calls\n- Justification and testing\n\n**9. TESTING & VERIFICATION**\n- Test coverage\n- Fuzzing and formal verification\n- CI/CD integration\n- Test quality\n\nFor complete assessment criteria including what I'll analyze, what I'll ask you, and detailed rating thresholds (WEAK/MODERATE/SATISFACTORY/STRONG), see [ASSESSMENT_CRITERIA.md](resources/ASSESSMENT_CRITERIA.md).\n\n---\n\n## Example Output\n\nWhen the assessment is complete, you'll receive a comprehensive maturity report including:\n\n- **Executive Summary**: Overall score, top 3 strengths, top 3 gaps, priority recommendations\n- **Maturity Scorecard**: Table with all 9 categories rated with scores and notes\n- **Detailed Analysis**: Category-by-category breakdown with evidence (file:line references)\n- **Improvement Roadmap**: Priority-ordered recommendations (CRITICAL/HIGH/MEDIUM) with effort estimates\n\nFor a complete example assessment report, see [EXAMPLE_REPORT.md](resources/EXAMPLE_REPORT.md).\n\n---\n\n## Assessment Process\n\nWhen invoked, I will:\n\n1. **Explore codebase**\n   - Find contract/module files\n   - Identify test files\n   - Locate documentation\n\n2. **Analyze each category**\n   - Search for relevant code patterns\n   - Read key implementations\n   - Assess against criteria\n   - Collect evidence\n\n3. **Interactive assessment**\n   - Present my findings with file references\n   - Ask about processes I can't see in code\n   - Discuss borderline cases\n   - Determine ratings together\n\n4. **Generate report**\n   - Executive summary\n   - Maturity scorecard table\n   - Detailed category analysis with evidence\n   - Priority-ordered improvement roadmap\n\n---\n\n## Rationalizations (Do Not Skip)\n\n| Rationalization | Why It's Wrong | Required Action |\n|-----------------|----------------|-----------------|\n| \"Found some findings, assessment complete\" | Assessment requires evaluating ALL 9 categories | Complete assessment of all 9 categories with evidence for each |\n| \"I see events, auditing category looks good\" | Events alone don't equal auditing maturity | Check logging comprehensiveness, testing, incident response processes |\n| \"Code looks simple, complexity is low\" | Visual simplicity masks composition complexity | Analyze cyclomatic complexity, dependency depth, state machine transitions |\n| \"Not a DeFi protocol, MEV category doesn't apply\" | MEV extends beyond DeFi (governance, NFTs, games) | Verify with transaction ordering analysis before declaring N/A |\n| \"No assembly found, low-level category is N/A\" | Low-level risks include external calls, delegatecall, inline assembly | Search for all low-level patterns before skipping category |\n| \"This is taking too long\" | Thorough assessment requires time per category | Complete all 9 categories, ask clarifying questions about off-chain processes |\n| \"I can rate this without evidence\" | Ratings without file:line references = unsubstantiated claims | Collect concrete code evidence for every category assessment |\n| \"User will know what to improve\" | Vague guidance = no action | Provide priority-ordered roadmap with specific improvements and effort estimates |\n\n---\n\n## Report Format\n\nFor detailed report structure and templates, see [REPORT_FORMAT.md](resources/REPORT_FORMAT.md).\n\n### Structure:\n\n1. **Executive Summary**\n   - Project name and platform\n   - Overall maturity (average rating)\n   - Top 3 strengths\n   - Top 3 critical gaps\n   - Priority recommendations\n\n2. **Maturity Scorecard**\n   - Table with all 9 categories\n   - Ratings and scores\n   - Key findings notes\n\n3. **Detailed Analysis**\n   - Per-category breakdown\n   - Evidence with file:line references\n   - Gaps and improvement actions\n\n4. **Improvement Roadmap**\n   - CRITICAL (immediate)\n   - HIGH (1-2 months)\n   - MEDIUM (2-4 months)\n   - Effort estimates and impact\n\n---\n\n## Ready to Begin\n\n**Estimated Time**: 30-40 minutes\n\n**I'll need**:\n- Access to full codebase\n- Your knowledge of processes (monitoring, incident response, team practices)\n- Context about the project (DeFi, NFT, infrastructure, etc.)\n\nLet's assess this codebase!\n","tagline":"Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. 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require human review before any live investment decision.","Quality score needs review"],"backward_compatible":{"trust_score_v4":{"version":"trust-score-v4","score":87,"tier":"production","label":"Production candidate","summary":"Strong OpenAgentSkill Trust Score across adoption, recent maintenance, license clarity, documentation, dependency/runtime risk, install safety, permission surface, and install availability."}}},"trust_score_v4":{"version":"trust-score-v4","score":87,"tier":"production","label":"Production candidate","summary":"Strong OpenAgentSkill Trust Score across adoption, recent maintenance, license clarity, documentation, dependency/runtime risk, install safety, permission surface, and install availability.","recommendedAction":"Shortlist for production use, then run a normal repository and dependency review.","dimensions":[{"id":"github_adoption","label":"GitHub adoption","score":94,"weight":0.13,"status":"pass","detail":"6.8K GitHub stars"},{"id":"repo_activity","label":"Stars/forks activity","score":88,"weight":0.08,"status":"pass","detail":"6.8K stars, 585 forks; 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issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"Pushed today"},{"status":"pass","label":"License clarity","detail":"CC-BY-SA-4.0"},{"status":"pass","label":"README/SKILL.md completeness","detail":"Metadata includes enough usage and workflow context"},{"status":"pass","label":"Dependency/runtime risk","detail":"no major dependency risk hints in public metadata"},{"status":"pass","label":"Install availability","detail":"npx skills add trailofbits/skills --skill code-maturity-assessor"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"pass","label":"Permission surface","detail":"filesystem or document access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor"},{"status":"pass","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"info","label":"OpenAgentSkill usage","detail":"No local usage activity yet"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Large GitHub adoption signal","Install command has no obvious high-risk pattern"],"warnings":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"],"evidence":{"stars":"6.8K GitHub stars","repoActivity":"6.8K stars, 585 forks","lastPushed":"Pushed today","license":"CC-BY-SA-4.0","repository":"https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor","install":"npx skills add trailofbits/skills --skill code-maturity-assessor","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"installReadiness":{"ready":true,"command":"npx skills add trailofbits/skills --skill code-maturity-assessor","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","Pushed today","Financial domain: human review is required before use in a live investment workflow."]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Human review or sandbox validation is required before automatic installation."},"bestFor":["security","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"knownRisks":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"outcome_stats":null,"safety":{"score":73,"level":"review_before_install","label":"Review before install","safety_tier":{"tier":"reviewed","label":"Reviewed with permission notes","badge":"REVIEWED","summary":"Usable candidate, but the agent should surface permission and audit notes before installation.","recommended_action":"Require human approval before installing into a real workspace.","auto_install_policy":"review","reasons":["Financial research output is not financial advice; require human review before any live investment decision","73/100 agent safety score"]},"auto_install_allowed":false,"human_review_required":true,"blocked":false,"audit_risk":"needs_review","permission_hints":[{"id":"network","label":"Network access","reason":"Skill likely fetches remote pages, APIs, repositories, or external services.","severity":"medium"},{"id":"filesystem","label":"Filesystem access","reason":"Skill may read or write project files, documents, generated artifacts, or local workspace state.","severity":"medium"}],"policy_warnings":["Financial research output is not financial advice; require human review before any live investment decision"],"constraints_applied":{"max_risk":"medium","needs_install_command":true,"min_stars":0}},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission notes","badge":"REVIEWED","auto_install_policy":"review","auto_install_allowed":false,"blocked":false,"human_review_required":true,"recommended_action":"Require human approval before installing into a real workspace.","reasons":["Financial research output is not financial advice; require human review before any live investment decision","73/100 agent safety score"]},"eval":{"version":"openagentskill-skill-eval-v1","status":"review","score":84,"risk_level":"medium","decision":{"recommendation":"manual_review","reason":"Require human approval before installing into a real workspace.","auto_install_allowed":false,"policy":"review","human_review_required":true},"blockers":[],"warnings":["Audit score: Needs review","Agent safety gate: Usable candidate, but the agent should surface permission and audit notes before installation.","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"],"validation_plan":["Inspect repository, README/SKILL.md, license, and recent commits before production use.","Install in an isolated workspace or sandbox with no production secrets available.","Run the smallest representative task and record files touched, commands run, network access, and outputs.","Compare the selected skill against at least one alternative when the eval status is review or failed.","Promote only after the agent reports a successful verification result and unresolved warnings are accepted."],"checks":[{"id":"task_fit","label":"Task fit","status":"pass","score":84,"required_for_auto_install":true,"detail":"Task wording matches this skill metadata.","evidence":["Evaluate code-maturity-assessor before installing it in an agent workflow","security","Research agents workflows; Claude Code teams; teams that value GitHub adoption signals"]},{"id":"install_path","label":"Install path","status":"pass","score":92,"required_for_auto_install":true,"detail":"Install handoff is available.","evidence":["npx skills add trailofbits/skills --skill code-maturity-assessor"]},{"id":"install_safety","label":"Install command safety","status":"pass","score":92,"required_for_auto_install":true,"detail":"standard package or runtime install path","evidence":["npx skills add trailofbits/skills --skill code-maturity-assessor"]},{"id":"trust_score","label":"Trust score","status":"pass","score":87,"required_for_auto_install":true,"detail":"Strong OpenAgentSkill Trust Score across adoption, recent maintenance, license clarity, documentation, dependency/runtime risk, install safety, permission surface, and install availability.","evidence":["Production candidate","6.8K GitHub stars","CC-BY-SA-4.0"]},{"id":"audit_score","label":"Audit score","status":"warn","score":89,"required_for_auto_install":true,"detail":"Needs review","evidence":["Financial research output is not financial advice; require human review before any live investment decision"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":73,"required_for_auto_install":true,"detail":"Usable candidate, but the agent should surface permission and audit notes before installation.","evidence":["Require human approval before installing into a real workspace.","Financial research output is not financial advice; require human review before any live investment decision"]},{"id":"readme_skillmd_completeness","label":"README/SKILL.md completeness","status":"pass","score":86,"required_for_auto_install":false,"detail":"Metadata includes enough usage and workflow context","evidence":["Strong README/SKILL.md context"]},{"id":"license_clarity","label":"License clarity","status":"pass","score":86,"required_for_auto_install":true,"detail":"CC-BY-SA-4.0","evidence":["CC-BY-SA-4.0"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"pass","score":100,"required_for_auto_install":false,"detail":"Pushed today","evidence":["Pushed today"]},{"id":"permission_surface","label":"Permission surface","status":"pass","score":86,"required_for_auto_install":true,"detail":"filesystem or document access","evidence":["Network access: medium","Filesystem access: medium"]},{"id":"alternatives","label":"Alternatives available","status":"info","score":55,"required_for_auto_install":false,"detail":"No close alternatives were found in the current shortlist.","evidence":[]}],"endpoints":{"web":"https://www.openagentskill.com/skills/trailofbits-code-maturity-assessor/evals","api":"/api/agent/evals?slug=trailofbits-code-maturity-assessor","text":"/api/agent/evals?slug=trailofbits-code-maturity-assessor&format=text"}},"agent_readable_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"trailofbits-code-maturity-assessor","name":"code-maturity-assessor","description":"Systematic code maturity assessment using Trail of Bits' 9-category framework. 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Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"trailofbits-code-maturity-assessor\",\"task\":\"Install code-maturity-assessor\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"code-maturity-assessor\" as a Claude Code skill from https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"trailofbits-code-maturity-assessor\",\"task\":\"Install code-maturity-assessor\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"code-maturity-assessor\" from https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"trailofbits-code-maturity-assessor\",\"task\":\"Install code-maturity-assessor\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/trailofbits-code-maturity-assessor/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/trailofbits-code-maturity-assessor"},"trust":{"score":87,"label":"Production candidate","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"6.8K GitHub stars","repoActivity":"6.8K stars, 585 forks","lastPushed":"Pushed today","license":"CC-BY-SA-4.0","repository":"https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor","install":"npx skills add trailofbits/skills --skill code-maturity-assessor","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["security","agent-skill"],"known_risks":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":89,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"]},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission notes","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Require human approval before installing into a real workspace."},"quality":{"score":86,"label":"Excellent"},"supply":{"track":"Research and knowledge work","scenario":"Research agents","maintenance":"Pushed today","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No OpenAgentSkill engagement data yet","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface"],"agent_contract":{"task_input":"Use code-maturity-assessor in an agent workflow","recommended_action":"Require human approval before installing into a real workspace.","install_policy":"review","minimum_review_before_use":["Trust: 87/100 Production candidate","Audit: 89/100 Needs review","Safety: 73/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"trailofbits-code-maturity-assessor (code-maturity-assessor)","install_command":"npx skills add trailofbits/skills --skill code-maturity-assessor","risk_summary":"Needs review; Reviewed with permission notes; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"trailofbits-code-maturity-assessor","task":"Use code-maturity-assessor in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/trailofbits-code-maturity-assessor","api":"https://www.openagentskill.com/api/agent/skills/trailofbits-code-maturity-assessor","audit":"https://www.openagentskill.com/skills/trailofbits-code-maturity-assessor/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=trailofbits-code-maturity-assessor&task=Use%20code-maturity-assessor%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20code-maturity-assessor%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20code-maturity-assessor%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/trailofbits-code-maturity-assessor/install","manifest":"https://www.openagentskill.com/api/registry/manifest/trailofbits-code-maturity-assessor"}},"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"trailofbits-code-maturity-assessor","name":"code-maturity-assessor","description":"Systematic code maturity assessment using Trail of Bits' 9-category framework. 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Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"trailofbits-code-maturity-assessor\",\"task\":\"Install code-maturity-assessor\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"code-maturity-assessor\" as a Claude Code skill from https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"trailofbits-code-maturity-assessor\",\"task\":\"Install code-maturity-assessor\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"code-maturity-assessor\" from https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"trailofbits-code-maturity-assessor\",\"task\":\"Install code-maturity-assessor\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/trailofbits-code-maturity-assessor/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/trailofbits-code-maturity-assessor"},"trust":{"score":87,"label":"Production candidate","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"6.8K GitHub stars","repoActivity":"6.8K stars, 585 forks","lastPushed":"Pushed today","license":"CC-BY-SA-4.0","repository":"https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor","install":"npx skills add trailofbits/skills --skill code-maturity-assessor","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["security","agent-skill"],"known_risks":["Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":89,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"]},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission notes","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Require human approval before installing into a real workspace."},"quality":{"score":86,"label":"Excellent"},"supply":{"track":"Research and knowledge work","scenario":"Research agents","maintenance":"Pushed today","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No OpenAgentSkill engagement data yet","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface"],"agent_contract":{"task_input":"Use code-maturity-assessor in an agent workflow","recommended_action":"Require human approval before installing into a real workspace.","install_policy":"review","minimum_review_before_use":["Trust: 87/100 Production candidate","Audit: 89/100 Needs review","Safety: 73/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"trailofbits-code-maturity-assessor (code-maturity-assessor)","install_command":"npx skills add trailofbits/skills --skill code-maturity-assessor","risk_summary":"Needs review; Reviewed with permission notes; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"trailofbits-code-maturity-assessor","task":"Use code-maturity-assessor in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/trailofbits-code-maturity-assessor","api":"https://www.openagentskill.com/api/agent/skills/trailofbits-code-maturity-assessor","audit":"https://www.openagentskill.com/skills/trailofbits-code-maturity-assessor/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=trailofbits-code-maturity-assessor&task=Use%20code-maturity-assessor%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20code-maturity-assessor%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20code-maturity-assessor%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/trailofbits-code-maturity-assessor/install","manifest":"https://www.openagentskill.com/api/registry/manifest/trailofbits-code-maturity-assessor"}},"supply_profile":{"track":{"slug":"research","label":"Research and knowledge work","shortLabel":"Research","description":"Deep research, source comparison, literature review, RAG, knowledge search, and reports."},"scenario":{"label":"Research agents","description":"I need my agent to research a topic, compare sources, and produce a concise report.","useCases":[{"slug":"research-agents","title":"Research agents"},{"slug":"rag-knowledge","title":"RAG and knowledge"},{"slug":"browser-automation","title":"Browser automation"}]},"applicableAgents":["Claude Code","CLI","Codex","Cursor"],"install":{"ready":true,"command":"npx skills add trailofbits/skills --skill code-maturity-assessor","primaryTarget":"CLI","targetCount":4},"githubQuality":{"stars":6823,"starsLabel":"6.8K","forks":585,"license":"CC-BY-SA-4.0","qualityScore":86,"trustScore":87,"auditScore":89},"maintenance":{"status":"fresh","label":"Pushed today","daysSincePush":0,"lastPushedAt":"2026-08-24T13:20:11+00:00"},"risk":{"level":"needs_review","label":"Needs review","requiresReview":true,"notes":["Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","Needs review"]},"coverageTags":["Research","Research agents","security","agent-skill"]},"audit":{"audit_score":89,"risk_level":"needs_review","risk_label":"Needs review","quality_score":86,"trust_score":87,"maintenance_score":100,"security_score":88,"install_score":92,"warnings":["Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review"]},"quality_signals":{"model":"v2","star_score":26.84,"usage_score":0,"review_score":5.4,"metadata_score":3,"freshness_score":15},"platforms":["Claude Code"],"use_cases":[{"slug":"research-agents","title":"Research agents","url":"https://www.openagentskill.com/use-cases/research-agents"},{"slug":"rag-knowledge","title":"RAG and knowledge","url":"https://www.openagentskill.com/use-cases/rag-knowledge"},{"slug":"browser-automation","title":"Browser automation","url":"https://www.openagentskill.com/use-cases/browser-automation"},{"slug":"testing-qa","title":"Testing and QA","url":"https://www.openagentskill.com/use-cases/testing-qa"}],"stacks":[{"slug":"research-report-agent","title":"Research report agent","url":"https://www.openagentskill.com/collections/research-report-agent"},{"slug":"rag-knowledge-base","title":"RAG knowledge base","url":"https://www.openagentskill.com/collections/rag-knowledge-base"},{"slug":"browser-qa-agent","title":"Browser QA agent","url":"https://www.openagentskill.com/collections/browser-qa-agent"}],"install":"npx skills add trailofbits/skills --skill code-maturity-assessor","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.2.1/openagentskill-0.2.1.tgz install trailofbits-code-maturity-assessor","description":"Resolve policy, run the source installer safely, and report a verified install receipt.","copyLabel":"Copy command"},{"id":"codex","label":"Codex","title":"Codex install prompt","kind":"agent-prompt","value":"Install the \"code-maturity-assessor\" agent skill from https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"trailofbits-code-maturity-assessor\",\"task\":\"Install code-maturity-assessor\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Give Codex a repo-aware install prompt when the skill is not available through a local CLI.","copyLabel":"Copy prompt"},{"id":"claude-code","label":"Claude Code","title":"Claude Code skill prompt","kind":"agent-prompt","value":"Add \"code-maturity-assessor\" as a Claude Code skill from https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"trailofbits-code-maturity-assessor\",\"task\":\"Install code-maturity-assessor\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this prompt to ask Claude Code to add the skill and explain the local activation steps.","copyLabel":"Copy prompt"},{"id":"cursor","label":"Cursor","title":"Cursor rule prompt","kind":"agent-prompt","value":"Turn \"code-maturity-assessor\" from https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Systematic code maturity assessment using Trail of Bits' 9-category framework. Analyzes codebase for arithmetic safety, auditing practices, access controls, complexity, decentralization, documentation, MEV risks, low-level code, and testing. Produces professional scorecard with evidence-based ratings and actionable recommendations. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"trailofbits-code-maturity-assessor\",\"task\":\"Install code-maturity-assessor\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this when installing as Cursor project rules or reusable agent instructions.","copyLabel":"Copy prompt"}],"repository":"https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor","github_repo":"trailofbits/skills","version":"1.0.0","license":"CC-BY-SA-4.0","urls":{"web":"https://www.openagentskill.com/skills/trailofbits-code-maturity-assessor","repository":"https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts/skills/code-maturity-assessor","api":"/api/agent/skills/trailofbits-code-maturity-assessor","install_api":"/api/skills/trailofbits-code-maturity-assessor/install"},"meta":{"created_at":"2026-08-24T13:24:18.456365+00:00","updated_at":"2026-08-24T13:24:18.456365+00:00","agent_friendly":true}}