silverfeaturelisted

# /silver:feature — Feature Development Workflow SB Agentic Process Orchestrator for new feature development. It dynamically composes SB quality contracts around the GSD phase lifecycle. GSD remains the execution backbone; Superpowers and other dependency plugins are invoked only when a selected SB flow explicitly requires them. Never implements features directly — orchestrates only. ## Mandatory dependency execution SB separates pre-execution gates from post-execution gates. Before implementation edits, the execution trace must show only the pre-execution dependency chain that unlocks GSD execution: 1. `gsd-scan` when rapid SB orientation is useful 2. `gsd-map-codebase` when the project is brownfield or deep codebase mapping is needed 3. `silver:clarify` when scope is fuzzy 4. `silver:research` when FLOW DECIDE is needed for architecture, stack, API, or data-model choices 5. `silver:quality-gates` 6. `gsd:discuss-phase` 7. `gsd:plan-phase` After implementation, final delivery requires the post-execution chain: 1. `gsd:execute-phase` or `gsd:autonomous` 2. `gsd:verify-work` 3. `gsd-code-review` and review triage/fix steps 4. `gsd-secure-phase` 5. `gsd-validate-phase` 6. `gsd-ship` If any required downstream skill cannot be invoked, stop immediately and notify the user. Offer install-and-retry first. Do not replace missing dependency skills with shell reconnaissance, direct edits, or other fallback work. The `workflow-chain-guard.sh` hook enforces only the pre-execut