Shared FSL language and verifier reference for writing, checking, verifying, repairing, explaining, mutating, refining, replaying, generating scenarios/test scaffolds, and interpreting fslc JSON results. Use directly for FSL syntax, kernel specs, verifier errors, repair loops, and command usage. For role-specific authoring, prefer fsl-business for business flows, fsl-requirements for PM requirements/acceptance/NFR specs, and fsl-design for engineering design/refinement work.
Generate, edit, and re-verify a human-readable requirements document (Markdown) from a checked FSL requirements/spec dialect file, using fslc document generate/claims/check. The agent is a non-normative editor and review-support assistant, never a compiler — it may only fill in the document's editable slot (background, summary, review notes) and propose advisory findings; it must never rewrite a generated claim block or invent normative language FSL does not state. Use when the deliverable is a requirements document artifact for stakeholders, not FSL authoring (use fsl-requirements for that) or a verification audit ledger (use fsl for fslc ledger).
Operate FSL's GitLab Flow-inspired lifecycle from short-lived branches through main and production to an exact vX.Y.Z release tag. Use when adopting the branch flow, integrating post-merge quality improvements, promoting a release, cutting a release, or handling a production hotfix.
Write and verify FSL requirements-layer specs for PMs/PdMs from natural-language product requirements, acceptance criteria, forbidden flows, requirement IDs, traceability, and NFRs such as permissions, audit, capacity, reliability, and SLA/deadline behavior. Use when the deliverable is a requirements specification, not business process discovery, software architecture, internal design, or implementation conformance.
Reconcile tasks/active.md with Git, changed files, and observed verification before compaction, clearing, or handoff.
Create or refresh the verified, resumable task packet in tasks/active.md before substantial FSL repository work.
Scaffold and verify a new native Rust FSL language feature while keeping syntax, lowering, symbolic/concrete semantics, docs, skill reference, tests, and changelog coupled.
Reconcile and save the current FSL task state before compaction, clearing, handoff, or ending substantial work.