Pattern Proposal: File-Backed Blackboard Knowledge Base

Summary

Maintains long-term shared architectural memory as a version-controlled, file-backed hierarchy of markdown and YAML templates.

Candidate Pattern

• ID: file-backed-blackboard-knowledge-base
• Classification: intelligence
• Maturity: established
• Type: implemented

Observed Signals

No specific signals listed.

Evidence

Supporting Evidence

• cas-knowledge/templates/pattern_template.md - Standardized schema template for architecture patterns.
• cas-knowledge/templates/rule_template.md - Standardized schema template for governance rules.
• src/cas_runner/bootstrap.py (bootstrap, init_workspace, merge_cas_governance_block) - Initializes and maintains file-backed governance structures.

Scope Assessment

• Evidence Strength: high
• Confidence: high
• Applies to: ideas-to-life-cas

Rationale

• Intent: Provide a shared, transparent, and auditable memory store where human architects and autonomous agents asynchronously collaborate.
• Context: Repository wide storage of decisions, patterns, signals, and rules across global and project-specific namespaces.
• Force: Vector databases can be opaque, difficult to audit, and prone to silent retrieval failures
• Force: Agents need consistent schema templates to create well-formed architectural deliverables

Traceability

Artifact source: proposed-patterns