fstack
Fabio Parlascino · Business & Operations
ChatGPTApp
fstack is a dual-engine skill stack for founders who still write the product. One router classifies the request: founder operations (inbound leads, support, social, strategy, competitive teardown) or engineering (/engineer-mode with 23 playbooks and 24 principles). The bridge skill is /support-loop: diagnose the customer issue, fix the bug with a failing test, draft the reply you can send. Install once. Same skills in ChatGPT, Codex, Cursor, and Claude Code.
Rankings
Skills
architectarenaautomate-mebabysitblast-radiusbrobrowseceo-reviewchangelog-to-postcreate-verification-skillcustomer-lensdeslopengineer-modefigure-it-outfix-cifix-merge-conflictsfounder-modefounder-voicefstackgeo-pageget-pr-commentshowinbox-triageinterrogatelead-replymaintain-verification-skillmake-pr-easy-to-reviewno-commentsoffice-hourspoteto-modeprinciple-attack-the-premiseprinciple-boundary-disciplineprinciple-build-the-leverprinciple-clear-namingprinciple-encode-lessons-in-structureprinciple-exhaust-the-design-spaceprinciple-experience-firstprinciple-fix-root-causesprinciple-foundational-thinkingprinciple-guard-the-context-windowprinciple-laziness-protocolprinciple-make-operations-idempotentprinciple-migrate-callers-then-delete-legacy-apisprinciple-minimize-reader-loadprinciple-model-the-domainprinciple-never-block-on-the-humanprinciple-outcome-oriented-executionprinciple-prove-it-worksprinciple-redesign-from-first-principlesprinciple-separate-before-serializing-shared-stateprinciple-sequence-verifiable-unitsprinciple-subtract-before-you-addprinciple-test-behavior-not-implementationprinciple-type-system-disciplinerecallreflectretrosetup-fstackshow-me-your-worksocial-postsocial-replystfusudosupport-loopswarmtddteachteardowntechnical-writingthermo-nuclear-code-quality-reviewtypescript-best-practicesunslopunslop-emailwhat-did-i-get-donewhy
Starter prompts
- Work on this in engineer-mode.
- Run /support-loop on this customer complaint.
- Reply to this inbound lead.