query-optimization
Skill18 starsChanged 3 months agoNo licenceView on GitHub
Diagnose and fix an existing slow database query, PostgreSQL first with MySQL notes, by capturing its real parameters, reading EXPLAIN ANALYZE plans, and verifying a targeted index, rewrite, or statistics fix. Use when a known query, endpoint, or job is slow, a plan regressed, or N+1 queries or deep OFFSET pagination appear. Not for new schema design (use the database-design skill) or general application profiling (use the performance-optimization skill).
9 other projects use a version of this.
Adopted by
Most recently taken up by
- AnyOrgName/php-skillstheir own version, first seen Nov 8, 2026
- jars-demo/jars-skillstheir own version, first seen Oct 25, 2026
- Ionate-Technologies/indium-agentkitword for word, first seen Oct 20, 2026
- duyet/clickhouse-monitoringtheir own version, first seen Oct 8, 2026
- nahid-sparktales/agent-dispatchertheir own version, first seen Sep 21, 2026
- novatic-cu/nova-skillstheir own version, first seen Sep 20, 2026
Used with
Projects with it also use background-jobs.
Other files people use alongside this one.
Files found in the same public projects as a version of this one, more often than they turn up anywhere else. Each project counts once, large collections count for less, and this file's own repository is left out.
YepAPISkillbackground-jobs
Queue workers with BullMQ/Inngest/Trigger.dev, job retries, dead letter queues, concurrency.
Also in 3 projects that use this
Other versions9 projects use a version of this.
Word for word · 1
- Ionate-Technologies/indium-agentkit★ 17100% same
Edited · 0
None found.
Wrote their own version · 8
- duyet/clickhouse-monitoring★ 303same name
- nahid-sparktales/agent-dispatcher★ 59same name
- AnyOrgName/php-skills★ 4same name
- ffsshhttiikk/opencode-agents-skills★ 2same name
- novatic-cu/nova-skills★ 1same name
- Abdox-menara/guard-skills★ 0same name
- gclm/super-stack★ 0same name
- jars-demo/jars-skills★ 0same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository83 other files it gives its agents.
- AGENTS.mdAGENTS.md
- templates/AGENTS.mdAGENTS.md
- .github/copilot-instructions.mdCopilot instructions
- access-control-designSkill
- accessibility-auditSkill
- add-cachingSkill
- address-review-feedbackSkill
- analyze-dataSkill
- api-designSkill
- ast-manipulation-codemodsSkill
- author-agentkit-contentSkill
- backend-apiSkill
- background-jobs-and-queuesSkill
- browser-security-configSkill
- build-llm-featureSkill
- build-retrievalSkill
- ci-pipelineSkill
- compliance-auditSkill
- config-and-secretsSkill
- containerize-serviceSkill
- contract-testingSkill
- cryptographic-protocol-implementationSkill
- database-designSkill
- data-pipeline-designSkill
- data-retention-and-erasureSkill
- delegate-workSkill
- dependency-auditSkill
- deployment-safetySkill
- e2e-test-suiteSkill
- estimate-workSkill
- evaluate-new-dependencySkill
- event-sourcing-architectureSkill
- feature-flag-lifecycleSkill
- flaky-test-triageSkill
- frontend-shipSkill
- git-recoverySkill
- handle-file-uploadsSkill
- hardware-in-loop-testingSkill
- implement-authenticationSkill
- incident-triageSkill
- infrastructure-as-codeSkill
- infrastructure-reviewSkill
- init-agent-contextSkill
- internationalize-uiSkill
- kubernetes-workloadsSkill
- llm-eval-harnessSkill
- load-testing-suiteSkill
- local-llm-integrationSkill
- mcp-server-developmentSkill
- memory-leak-investigationSkill
- ml-model-developmentSkill
- mobile-featureSkill
- mobile-release-safetySkill
- multi-agent-workflow-designSkill
- observability-setupSkill
- onboard-to-codebaseSkill
- performance-optimizationSkill
- plan-changeSkill
- product-analyticsSkill
- production-data-fixSkill
- The first 60 shown.
The file
Show its rules and text
We split this skill into the rules it gives an agent
16 rules. 0 are common, 7 are distinctive, and 9 are very specific to this project.
0
Common
Most of the 6 edited versions we read keep these.
7
Distinctive
This author's own choices. Worth a look.
9
Very specific
Tied to their project's names, files or tools. Probably skip.
No licence file, so all rights are reserved — read it at the source. We count its rules but don't quote them. Read them on GitHub.
“Common” is measured: kept by at least 6 in 10 of the 6 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
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