{"slug":"jeffallan-database-optimizer","name":"database-optimizer","description":"Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.","long_description":"---\nname: database-optimizer\ndescription: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.\nlicense: MIT\nmetadata:\n  author: https://github.com/Jeffallan\n  version: \"1.1.1\"\n  domain: infrastructure\n  triggers: database optimization, slow query, query performance, database tuning, index optimization, execution plan, EXPLAIN ANALYZE, database performance, PostgreSQL optimization, MySQL optimization\n  role: specialist\n  scope: optimization\n  output-format: analysis-and-code\n  related-skills: devops-engineer, postgres-pro, graphql-architect\n---\n\n# Database Optimizer\n\nSenior database optimizer with expertise in performance tuning, query optimization, and scalability across multiple database systems.\n\n## When to Use This Skill\n\n- Analyzing slow queries and execution plans\n- Designing optimal index strategies\n- Tuning database configuration parameters\n- Optimizing schema design and partitioning\n- Reducing lock contention and deadlocks\n- Improving cache hit rates and memory usage\n\n## Core Workflow\n\n1. **Analyze Performance** — Capture baseline metrics and run `EXPLAIN ANALYZE` before any changes\n2. **Identify Bottlenecks** — Find inefficient queries, missing indexes, config issues\n3. **Design Solutions** — Create index strategies, query rewrites, schema improvements\n4. **Implement Changes** — Apply optimizations incrementally with monitoring; validate each change before proceeding to the next\n5. **Validate Results** — Re-run `EXPLAIN ANALYZE`, compare costs, measure wall-clock improvement, document changes\n\n> ⚠️ Always test changes in non-production first. Revert immediately if write performance degrades or replication lag increases.\n\n## Reference Guide\n\nLoad detailed guidance based on context:\n\n| Topic | Reference | Load When |\n|-------|-----------|-----------|\n| Query Optimization | `references/query-optimization.md` | Analyzing slow queries, execution plans |\n| Index Strategies | `references/index-strategies.md` | Designing indexes, covering indexes |\n| PostgreSQL Tuning | `references/postgresql-tuning.md` | PostgreSQL-specific optimizations |\n| MySQL Tuning | `references/mysql-tuning.md` | MySQL-specific optimizations |\n| Monitoring & Analysis | `references/monitoring-analysis.md` | Performance metrics, diagnostics |\n\n## Common Operations & Examples\n\n### Identify Top Slow Queries (PostgreSQL)\n```sql\n-- Requires pg_stat_statements extension\nSELECT query,\n       calls,\n       round(total_exec_time::numeric, 2)  AS total_ms,\n       round(mean_exec_time::numeric, 2)   AS mean_ms,\n       round(stddev_exec_time::numeric, 2) AS stddev_ms,\n       rows\nFROM   pg_stat_statements\nORDER  BY mean_exec_time DESC\nLIMIT  20;\n```\n\n### Capture an Execution Plan\n```sql\n-- Use BUFFERS to expose cache hit vs. disk read ratio\nEXPLAIN (ANALYZE, BUFFERS, FORMAT TEXT)\nSELECT o.id, c.name\nFROM   orders o\nJOIN   customers c ON c.id = o.customer_id\nWHERE  o.status = 'pending'\n  AND  o.created_at > now() - interval '7 days';\n```\n\n### Reading EXPLAIN Output — Key Patterns to Find\n\n| Pattern | Symptom | Typical Remedy |\n|---------|---------|----------------|\n| `Seq Scan` on large table | High row estimate, no filter selectivity | Add B-tree index on filter column |\n| `Nested Loop` with large outer set | Exponential row growth in inner loop | Consider Hash Join; index inner join key |\n| `cost=... rows=1` but actual rows=50000 | Stale statistics | Run `ANALYZE <table>;` |\n| `Buffers: hit=10 read=90000` | Low buffer cache hit rate | Increase `shared_buffers`; add covering index |\n| `Sort Method: external merge` | Sort spilling to disk | Increase `work_mem` for the session |\n\n### Create a Covering Index\n```sql\n-- Covers the filter AND the projected columns, eliminating a heap fetch\nCREATE INDEX CONCURRENTLY idx_orders_status_created_covering\n    ON orders (status, created_at)\n    INCLUDE (customer_id, total_amount);\n```\n\n### Validate Improvement\n```sql\n-- Before optimization: save plan & timing\nEXPLAIN (ANALYZE, BUFFERS) <query>;   -- note \"Execution Time: X ms\"\n\n-- After optimization: compare\nEXPLAIN (ANALYZE, BUFFERS) <query>;   -- target meaningful reduction in cost & time\n\n-- Confirm index is actually used\nSELECT indexname, idx_scan, idx_tup_read, idx_tup_fetch\nFROM   pg_stat_user_indexes\nWHERE  relname = 'orders';\n```\n\n### MySQL: Find Slow Queries\n```sql\n-- Inspect slow query log candidates\nSELECT * FROM performance_schema.events_statements_summary_by_digest\nORDER  BY SUM_TIMER_WAIT DESC\nLIMIT  20;\n\n-- Execution plan\nEXPLAIN FORMAT=JSON\nSELECT * FROM orders WHERE status = 'pending' AND created_at > NOW() - INTERVAL 7 DAY;\n```\n\n## Constraints\n\n### MUST DO\n- Capture `EXPLAIN (ANALYZE, BUFFERS)` output **before** optimizing — this is the baseline\n- Measure performance before and after every change\n- Create indexes with `CONCURRENTLY` (PostgreSQL) to avoid table locks\n- Test in non-production; roll back if write performance or replication lag worsens\n- Document all optimization decisions with before/after metrics\n- Run `ANALYZE` after bulk data changes to refresh statistics\n\n### MUST NOT DO\n- Apply optimizations without a measured baseline\n- Create redundant or unused indexes\n- Make multiple changes simultaneously (impossible to attribute impact)\n- Ignore write amplification caused by new indexes\n- Neglect `VACUUM` / statistics maintenance\n\n## Output Templates\n\nWhen optimizing database performance, provide:\n1. Performance analysis with baseline metrics (query time, cost, buffer hit ratio)\n2. Identified bottlenecks and root causes (with EXPLAIN evidence)\n3. Optimization strategy with specific changes\n4. Implementation SQL / config changes\n5. Validation queries to measure improvement\n6. Monitoring recommendations\n\n[Documentation](https://jeffallan.github.io/claude-skills/skills/infrastructure/database-optimizer/)\n","tagline":"Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, loc","category":"design-creative","tags":["agent-skill"],"author":"Jeffallan","verified":false,"attribution":{"status":"registry_indexed","statusLabel":"Registry indexed","shortLabel":"REGISTRY INDEXED","sourceLabel":"github candidate review","sourceDetail":"Jeffallan/claude-skills","creatorName":"Jeffallan","creatorUrl":"https://github.com/Jeffallan","sourceUrl":"https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer","indexedBy":"OpenAgentSkill community index","claimUrl":"https://www.openagentskill.com/skills/jeffallan-database-optimizer#claim-this-skill","claimCta":"Claim this skill","trustNote":"This listing was indexed from public sources and is not marked official until a maintainer claim is approved.","publicNote":"Attribution links to the public repository or creator profile. Creators can claim the listing to update ownership signals."},"stats":{"stars":11286,"forks":1080,"verified_installs":0,"successful_runs":0,"total_outcomes":0,"rating":0,"review_count":0,"quality_score":51.47},"quality":{"score":84,"tier":"strong","label":"Strong","summary":"Solid option that is likely worth shortlisting for production workflows.","signals":[{"label":"GitHub stars","value":"11K","tone":"positive"},{"label":"Freshness","value":"1mo ago","tone":"positive"},{"label":"Install ready","value":"Yes","tone":"positive"},{"label":"License","value":"MIT","tone":"neutral"}],"warnings":["The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes."]},"trust":{"version":"trust-score-v5","score":66,"base_score":74,"outcome_confidence":0,"tier":"review","label":"Sandbox only","summary":"Useful candidate with missing or mixed trust signals. 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and workflow context"},{"status":"info","label":"Dependency/runtime risk","detail":"network or browser surface, database surface"},{"status":"pass","label":"Install availability","detail":"npx skills add Jeffallan/claude-skills --skill database-optimizer"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"warn","label":"Permission surface","detail":"filesystem or document access, network or browser access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer"},{"status":"info","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":["The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"],"evidence":{"stars":"11K GitHub stars","repoActivity":"11K stars, 1.1K forks","lastPushed":"1mo since push","license":"MIT","repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer","install":"npx skills add Jeffallan/claude-skills --skill database-optimizer","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"installReadiness":{"ready":true,"command":"npx skills add Jeffallan/claude-skills --skill database-optimizer","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","1mo since push"]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"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":["design-creative","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"],"knownRisks":["The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"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":61,"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":["Permission surface may require sandboxing","61/100 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"},{"id":"database","label":"Database access","reason":"Skill may inspect schemas, query databases, or work with persistent stores.","severity":"medium"}],"policy_warnings":["Permission surface may require sandboxing"],"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":["Permission surface may require sandboxing","61/100 agent safety score"]},"eval":{"version":"openagentskill-skill-eval-v1","status":"review","score":76,"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":["Trust score: Good trust signals with a few areas worth checking before rollout.","Audit score: Needs review","Agent safety gate: Usable candidate, but the agent should surface permission and audit notes before installation.","Permission surface: filesystem or document access, network or browser access","Permission surface may require sandboxing","The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","No explicit guidance on handling database credentials, connection safety, or least-privilege access.","Rollback instructions are general rather than concrete per operation, which could be risky when applying configuration changes.","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access"],"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 database-optimizer before installing it in an agent workflow","design-creative","Database and SQL 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 Jeffallan/claude-skills --skill database-optimizer"]},{"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 Jeffallan/claude-skills --skill database-optimizer"]},{"id":"trust_score","label":"Trust score","status":"warn","score":74,"required_for_auto_install":true,"detail":"Good trust signals with a few areas worth checking before rollout.","evidence":["Strong shortlist","11K GitHub stars","MIT"]},{"id":"audit_score","label":"Audit score","status":"warn","score":81,"required_for_auto_install":true,"detail":"Needs review","evidence":["Permission surface may require sandboxing"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":61,"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.","Permission surface may require sandboxing"]},{"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":"MIT","evidence":["MIT"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"pass","score":88,"required_for_auto_install":false,"detail":"1mo since push","evidence":["1mo since push"]},{"id":"permission_surface","label":"Permission surface","status":"warn","score":60,"required_for_auto_install":true,"detail":"filesystem or document access, network or browser access","evidence":["Network access: medium","Filesystem access: medium","Database 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/jeffallan-database-optimizer/evals","api":"/api/agent/evals?slug=jeffallan-database-optimizer","text":"/api/agent/evals?slug=jeffallan-database-optimizer&format=text"}},"agent_readable_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"jeffallan-database-optimizer","name":"database-optimizer","description":"Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.","category":"design-creative","url":"https://www.openagentskill.com/skills/jeffallan-database-optimizer","repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer","github_repo":"Jeffallan/claude-skills"},"suited_tasks":["Database and SQL workflows","Claude Code teams","teams that value GitHub adoption signals","Understand table relationships","Write safer queries","Explain database changes","Inspect repository metadata","Compare code changes"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add Jeffallan/claude-skills --skill database-optimizer","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add jeffallan-database-optimizer"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"database-optimizer\" agent skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer. 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: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. 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\":\"jeffallan-database-optimizer\",\"task\":\"Install database-optimizer\",\"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 \"database-optimizer\" as a Claude Code skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer. 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: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. 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\":\"jeffallan-database-optimizer\",\"task\":\"Install database-optimizer\",\"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 \"database-optimizer\" from https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer 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: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. 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\":\"jeffallan-database-optimizer\",\"task\":\"Install database-optimizer\",\"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/jeffallan-database-optimizer/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/jeffallan-database-optimizer"},"trust":{"score":74,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"11K GitHub stars","repoActivity":"11K stars, 1.1K forks","lastPushed":"1mo since push","license":"MIT","repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer","install":"npx skills add Jeffallan/claude-skills --skill database-optimizer","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser 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":["design-creative","agent-skill"],"known_risks":["The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"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":81,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Permission surface may require sandboxing","The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","No explicit guidance on handling database credentials, connection safety, or least-privilege access.","Rollback instructions are general rather than concrete per operation, which could be risky when applying configuration changes.","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"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":84,"label":"Strong"},"supply":{"track":"Coding and developer agents","scenario":"Database and SQL","maintenance":"1mo since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","production agents without a repository review","The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","No OpenAgentSkill engagement data yet","Permission surface may require sandboxing","No explicit guidance on handling database credentials, connection safety, or least-privilege access.","Rollback instructions are general rather than concrete per operation, which could be risky when applying configuration changes.","Quality score needs review"],"agent_contract":{"task_input":"Use database-optimizer in an agent workflow","recommended_action":"Require human approval before installing into a real workspace.","install_policy":"review","minimum_review_before_use":["Trust: 74/100 Strong shortlist","Audit: 81/100 Needs review","Safety: 61/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"jeffallan-database-optimizer (database-optimizer)","install_command":"npx skills add Jeffallan/claude-skills --skill database-optimizer","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":"jeffallan-database-optimizer","task":"Use database-optimizer 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/jeffallan-database-optimizer","api":"https://www.openagentskill.com/api/agent/skills/jeffallan-database-optimizer","audit":"https://www.openagentskill.com/skills/jeffallan-database-optimizer/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=jeffallan-database-optimizer&task=Use%20database-optimizer%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20database-optimizer%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20database-optimizer%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/jeffallan-database-optimizer/install","manifest":"https://www.openagentskill.com/api/registry/manifest/jeffallan-database-optimizer"}},"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"jeffallan-database-optimizer","name":"database-optimizer","description":"Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.","category":"design-creative","url":"https://www.openagentskill.com/skills/jeffallan-database-optimizer","repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer","github_repo":"Jeffallan/claude-skills"},"suited_tasks":["Database and SQL workflows","Claude Code teams","teams that value GitHub adoption signals","Understand table relationships","Write safer queries","Explain database changes","Inspect repository metadata","Compare code changes"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add Jeffallan/claude-skills --skill database-optimizer","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add jeffallan-database-optimizer"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"database-optimizer\" agent skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer. 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: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. 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\":\"jeffallan-database-optimizer\",\"task\":\"Install database-optimizer\",\"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 \"database-optimizer\" as a Claude Code skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer. 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: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. 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\":\"jeffallan-database-optimizer\",\"task\":\"Install database-optimizer\",\"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 \"database-optimizer\" from https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer 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: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. 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\":\"jeffallan-database-optimizer\",\"task\":\"Install database-optimizer\",\"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/jeffallan-database-optimizer/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/jeffallan-database-optimizer"},"trust":{"score":74,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"11K GitHub stars","repoActivity":"11K stars, 1.1K forks","lastPushed":"1mo since push","license":"MIT","repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer","install":"npx skills add Jeffallan/claude-skills --skill database-optimizer","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser 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":["design-creative","agent-skill"],"known_risks":["The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"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":81,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Permission surface may require sandboxing","The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","No explicit guidance on handling database credentials, connection safety, or least-privilege access.","Rollback instructions are general rather than concrete per operation, which could be risky when applying configuration changes.","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"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":84,"label":"Strong"},"supply":{"track":"Coding and developer agents","scenario":"Database and SQL","maintenance":"1mo since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","production agents without a repository review","The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","No OpenAgentSkill engagement data yet","Permission surface may require sandboxing","No explicit guidance on handling database credentials, connection safety, or least-privilege access.","Rollback instructions are general rather than concrete per operation, which could be risky when applying configuration changes.","Quality score needs review"],"agent_contract":{"task_input":"Use database-optimizer in an agent workflow","recommended_action":"Require human approval before installing into a real workspace.","install_policy":"review","minimum_review_before_use":["Trust: 74/100 Strong shortlist","Audit: 81/100 Needs review","Safety: 61/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"jeffallan-database-optimizer (database-optimizer)","install_command":"npx skills add Jeffallan/claude-skills --skill database-optimizer","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":"jeffallan-database-optimizer","task":"Use database-optimizer 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/jeffallan-database-optimizer","api":"https://www.openagentskill.com/api/agent/skills/jeffallan-database-optimizer","audit":"https://www.openagentskill.com/skills/jeffallan-database-optimizer/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=jeffallan-database-optimizer&task=Use%20database-optimizer%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20database-optimizer%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20database-optimizer%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/jeffallan-database-optimizer/install","manifest":"https://www.openagentskill.com/api/registry/manifest/jeffallan-database-optimizer"}},"supply_profile":{"track":{"slug":"coding","label":"Coding and developer agents","shortLabel":"Coding","description":"Code review, repo analysis, testing, CI, GitHub, DevOps, and developer workflow skills."},"scenario":{"label":"Database and SQL","description":"I need my agent to inspect database schemas, write SQL, and explain query results.","useCases":[{"slug":"database-sql","title":"Database and SQL"},{"slug":"github-automation","title":"GitHub automation"},{"slug":"browser-automation","title":"Browser automation"}]},"applicableAgents":["Claude Code","CLI","Codex","Cursor"],"install":{"ready":true,"command":"npx skills add Jeffallan/claude-skills --skill database-optimizer","primaryTarget":"CLI","targetCount":4},"githubQuality":{"stars":11286,"starsLabel":"11K","forks":1080,"license":"MIT","qualityScore":84,"trustScore":74,"auditScore":81},"maintenance":{"status":"active","label":"1mo since push","daysSincePush":31,"lastPushedAt":"2026-08-07T20:19:18+00:00"},"risk":{"level":"needs_review","label":"Needs review","requiresReview":true,"notes":["Permission surface may require sandboxing","The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","No explicit guidance on handling database credentials, connection safety, or least-privilege access.","Rollback instructions are general rather than concrete per operation, which could be risky when applying configuration changes.","Quality score needs review"]},"coverageTags":["Coding","Database and SQL","design-creative","agent-skill"]},"audit":{"audit_score":81,"risk_level":"needs_review","risk_label":"Needs review","quality_score":84,"trust_score":74,"maintenance_score":88,"security_score":78,"install_score":92,"warnings":["Permission surface may require sandboxing","The skill includes commands that modify database configuration globally (ALTER SYSTEM, SET GLOBAL) without an explicit mandatory human-approval gate before production changes.","No explicit guidance on handling database credentials, connection safety, or least-privilege access.","Rollback instructions are general rather than concrete per operation, which could be risky when applying configuration changes.","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"quality_signals":{"model":"v2","star_score":28.37,"usage_score":0,"review_score":5.1,"metadata_score":3,"freshness_score":15},"platforms":["Claude Code"],"use_cases":[{"slug":"database-sql","title":"Database and SQL","url":"https://www.openagentskill.com/use-cases/database-sql"},{"slug":"github-automation","title":"GitHub automation","url":"https://www.openagentskill.com/use-cases/github-automation"},{"slug":"browser-automation","title":"Browser automation","url":"https://www.openagentskill.com/use-cases/browser-automation"},{"slug":"research-agents","title":"Research agents","url":"https://www.openagentskill.com/use-cases/research-agents"}],"stacks":[{"slug":"browser-qa-agent","title":"Browser QA agent","url":"https://www.openagentskill.com/collections/browser-qa-agent"},{"slug":"frontend-product-ui","title":"Frontend and UI","url":"https://www.openagentskill.com/collections/frontend-product-ui"},{"slug":"content-growth-agent","title":"Content growth agent","url":"https://www.openagentskill.com/collections/content-growth-agent"}],"install":"npx skills add Jeffallan/claude-skills --skill database-optimizer","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add jeffallan-database-optimizer","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 \"database-optimizer\" agent skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer. 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: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. 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\":\"jeffallan-database-optimizer\",\"task\":\"Install database-optimizer\",\"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 \"database-optimizer\" as a Claude Code skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer. 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: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. 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\":\"jeffallan-database-optimizer\",\"task\":\"Install database-optimizer\",\"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 \"database-optimizer\" from https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer 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: Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. 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\":\"jeffallan-database-optimizer\",\"task\":\"Install database-optimizer\",\"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/Jeffallan/claude-skills/tree/main/skills/database-optimizer","github_repo":"Jeffallan/claude-skills","version":"1.0.0","license":"MIT","urls":{"web":"https://www.openagentskill.com/skills/jeffallan-database-optimizer","repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/database-optimizer","api":"/api/agent/skills/jeffallan-database-optimizer","install_api":"/api/skills/jeffallan-database-optimizer/install"},"meta":{"created_at":"2026-09-02T07:31:49.922586+00:00","updated_at":"2026-09-02T07:31:50.017404+00:00","agent_friendly":true}}