Lock two design decisions: (1) six independent namespaced tag facets
(type/client/project/domain/tool/convention/) plus scope/, with
hierarchy expressed via hub notes and Graphify edges, not nested paths;
(2) adopt the existing ~/Documents/SecondBrain vault as the knowledge
layer rather than creating a new one — it is already flat, governs to
the correct semantics, and contains useful patterns (proactive-query
spec, tag-inference table).
See ADR-011 and ADR-012 for rationale, rejected alternatives, and
migration cost (mechanical schema updates on existing ~20 notes).
Under the new orchestrator-subagent pattern, version control is
delegated — the orchestrator (Claude) dispatches git operations
to subagents rather than calling them directly. Update the allowed
operations list to reflect this constraint.
Establishes a tool-based delegation rule: all file I/O and shell
commands go via subagents; only git commands, Skill invocations, and
conversational responses are permitted at orchestrator level. Explicit
stop-and-ask rule removes wiggle room for self-authorized exceptions.
Includes model routing table covering the actual work types in this repo.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Initialize the repository with configuration for spec-driven change
management via OpenSpec. Add CLAUDE.md to document the project's
purpose (documentation-only design phase for a personal memory system),
directory layout, current architecture, and repository conventions
including provenance discipline and ADR practices. Add .gitignore to
exclude local AI-assistant skill mirror directories (.claude/,
.codex/, .pi/) which are kept in sync locally but not versioned.
The handoff document was a session artifact; it is no longer needed.
Update all architecture docs to reflect the design pivot: Graphify
knowledge graph supersedes the earlier Ruby/SQLite tag-index CLI and
the deferred QMD semantic layer. The vault metadata (summary + tags)
is retained; only the bespoke index is removed. Update ADRs 003, 005,
and 006 to note they are superseded by ADR-010 (Graphify), and update
all system-design doc references from the three-layer model to the
final two-layer model (episodic + knowledge).
Graphify eliminates the need for the Ruby/SQLite tag index (Step 2 on
the critical path). It provides entity extraction and relationship
inference over vault docs via a local SLM, and deterministic code
graphs for projects via AST — both at significantly lower complexity.
This commit records the architecture decision and evaluation that
justifies the pivot.
Vault graphs still require author-maintained summaries (human router
hint), but tagging discipline is now optional. Project code graphs are
free (no LLM cost). Stale-node drift requires periodic `--force`
rebuilds; strategy documented for SessionStart hooks.
The three-layer memory system remains unchanged: episodic (memsearch),
knowledge (Graphify + vault), integration (custom glue). See
06-graphify-evaluation.md for the open questions and limitations.
This documents the complete architecture for a personal, cross-project
memory system for Claude Code: three-layer (episodic/knowledge/deferred-
semantic) design using Milvus Lite for fast local storage with lazy
remote sync. Includes video synthesis, architecture decisions with
rejected alternatives (MemPalace, Mem0, Postgres, LightRAG), concrete
build plan with scripts and hooks, and initial handoff for implementation.
jared