spec_version: '0.1.0' name: 'impl-build-implement' version: '1.0.0' description: 'Implementation pipeline orchestrator — drives the full implementation lifecycle from project scaffolding through TDD feature development, UAT, and final verification. Consumes _concept/ artifacts from the concept pipeline.' extends: '../../../ai-asset-management/agents/skaile/agent.yaml' model: preferred: 'claude-opus-4-6' fallback: - 'claude-sonnet-4-6' constraints: temperature: 0.1 max_tokens: 8192 delegation: mode: 'explicit' runtime: max_turns: 200 timeout: 3600 author: 'skaile' license: 'MIT' tags: - 'orchestrator' - 'implementation-pipeline' - 'scaffolding' - 'tdd' - 'uat' - 'verification' - 'plans' metadata: domain: 'impl-build-implementation' skill_merged: 'skills/impl-build-implement/SKILL.md' phases: 'Setup, Features, UAT, Verification' complexity_tiers: 'small, standard, complex' consumes: '_concept/ artifacts (1_discovery, 2_experience, 3_blueprint)' produces: 'Committed tested code, PLANS.md implementation progress, LEARNINGS.md' resume: 'reads PLANS.md if present — resumes from last incomplete step' expert_routing: 'Searches skaileup-prog-expert-* skills for tech-stack-specific guidance' stage: 'alpha'