airworthiness-liaisonlisted

# DO-178C Airworthiness Liaison (avionics/do178c/airworthiness-liaison) Use when the task is DO-178C airworthiness and certification liaison: certification-basis coverage, SOI audit readiness, and open-item tracking with the certification authority. ## Domain quick reference - Certification basis: the airworthiness requirements the software item must satisfy (airworthiness regulations plus the accepted means of compliance); each basis item needs evidence. - Stage-of-involvement (SOI) audits: the authority audits planning, development, verification, and configuration management artifacts; readiness is the fraction of required evidence that is present. - Readiness thresholds are project-defined and scale with the software level: levels A and B demand full evidence, lower levels tolerate small gaps. - Open liaison items (issue papers, audit findings) must close before the certification plan can complete. ## Workflow 1. Collect the certification basis items and their evidence status. 2. Build the coverage account with cert_basis_coverage. 3. Map required evidence to the software level and score SOI readiness with soi_readiness. 4. Track open liaison items with liaison_action. 5. Gate the next audit on readiness and open-item closure. ## Pitfalls - Counting basis items without evidence as covered. - Applying a level A readiness bar to level D work (and the reverse). - Letting open items ride through audits unclosed. ## Behavior contract (gate 3) The certi