Files
exo/PROGRESS.md
Kyle Isom 051a85d846 Add Phase 4 knowledge graph: nodes, cells, facts, edges, gRPC service
Build the knowledge graph pillar with the kg package:
- Node: hierarchical notes with parent/children, C2 wiki-style naming,
  shared tag/category pool with artifacts
- Cell: content units (markdown, code, plain) with ordinal ordering
- Fact: EAV tuples with transaction timestamps and retraction support
- Edge: directed graph links (child, parent, related, artifact_link)

Includes schema migration (002_knowledge_graph.sql), protobuf definitions
(kg.proto), full gRPC KnowledgeGraphService implementation, CLI commands
(node create/get), and comprehensive test coverage.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-21 10:05:43 -07:00

4.8 KiB

Progress

Tracks implementation progress against the phases in PROJECT_PLAN.md.

Phase 1: Foundation — COMPLETE

Deliverables:

  • Go module (go.mod) at git.wntrmute.dev/kyle/exo
  • core package: Header, Metadata, Value, ObjectType, NewUUID, MapFromList/ListFromMap
  • SQLite migration framework with embedded SQL files (db/migrations/)
  • Initial schema migration (001_initial.sql): 13 tables covering shared infrastructure, bibliographic, and artifact repository
  • Database access layer: Open (with WAL, foreign keys, busy timeout), StartTX/EndTX, ToDBTime/FromDBTime
  • config package: Config struct with paths for database, blob store, Minio endpoint, gRPC listen address
  • .golangci.yaml — strict linting (errcheck, govet, gosec, staticcheck, revive, errorlint)
  • Makefile — vet, lint, test, build targets
  • Full test coverage for all packages (core, db, config)

Files created:

  • go.mod, go.sum
  • core/core.go, core/core_test.go
  • db/db.go, db/db_test.go, db/migrations/001_initial.sql
  • config/config.go, config/config_test.go
  • .golangci.yaml, Makefile

Phase 2: Artifact Repository — COMPLETE

Deliverables:

  • artifacts package: Artifact, Snapshot, BlobRef, Citation, Publisher types with Get/Store methods
  • MIME type alias for clarity
  • Tag and category management: CreateTag/GetTag/GetAllTags, CreateCategory/GetCategory/GetAllCategories, GetArtifactIDsForTag
  • Metadata store/retrieve operations (StoreMetadata/GetMetadata)
  • blob package: Content-addressable blob store (SHA256 hashing, hierarchical directory layout, read/write/exists)
  • YAML import: ArtifactYAML, SnapshotYAML, CitationYAML with ToStd() conversions and LoadArtifactFromYAML
  • Protobuf message definitions for all artifact types (proto/exo/v1/common.proto, proto/exo/v1/artifacts.proto)
  • gRPC service: ArtifactService with create/get artifacts, store/retrieve blobs, manage tags/categories, search by tag
  • server package: Full gRPC service implementation with proto-domain conversion helpers
  • buf.yaml for proto linting, buf.gen.yaml for code generation
  • Full test coverage for all packages (artifacts, blob, server)

Files created:

  • blob/blob.go, blob/blob_test.go
  • artifacts/artifact.go, artifacts/citation.go, artifacts/publisher.go, artifacts/snapshot.go
  • artifacts/metadata.go, artifacts/tagcat.go, artifacts/yaml.go, artifacts/artifacts_test.go
  • proto/exo/v1/common.proto, proto/exo/v1/artifacts.proto
  • proto/buf.yaml, proto/buf.gen.yaml
  • proto/exo/v1/*.pb.go (generated)
  • server/server.go, server/server_test.go

Phase 3: CLI Tools — COMPLETE

Deliverables:

  • exod server binary: gRPC daemon with startup, graceful shutdown (SIGINT/SIGTERM), auto-migration, flag-based configuration (-listen, -base, -version)
  • exo CLI binary: import (YAML artifacts), tag add/list, cat add/list, search tag
  • YAML import parser in CLI (converts to proto messages for gRPC transport)
  • Environment variable support (EXO_ADDR for server address)
  • Makefile build target produces both binaries in bin/
  • Version injection via -ldflags

Files created:

  • cmd/exod/main.go
  • cmd/exo/main.go, cmd/exo/yaml.go

Phase 4: Knowledge Graph — COMPLETE

Deliverables:

  • kg package: Node, Cell, Fact, Edge types with Store/Get methods
  • Database schema migration (002_knowledge_graph.sql): nodes, cells, facts, edges, node_tags, node_categories tables
  • Node hierarchy (parent/children), C2 wiki-style naming, lookup by name
  • Cell content types (markdown, code, plain) with ordinal ordering
  • EAV fact storage with transaction timestamps and retraction support
  • GetCurrentFactsForEntity applies retraction logic to return only active facts
  • Edge types: child, parent, related, artifact_link (cross-pillar references)
  • Protobuf definitions (proto/exo/v1/kg.proto): Node, Cell, Fact, Edge messages and KnowledgeGraphService
  • gRPC service: CreateNode, GetNode, AddCell, RecordFact, GetFacts, AddEdge, GetEdges
  • CLI commands: exo node create <name>, exo node get <id>
  • KG service registered in exod
  • Shared tag/category pool: nodes use the same tags/categories tables as artifacts
  • Full test coverage (kg package: 10 tests covering nodes, cells, facts, edges, hierarchy, retractions)

Files created:

  • kg/node.go, kg/cell.go, kg/fact.go, kg/edge.go, kg/kg_test.go
  • db/migrations/002_knowledge_graph.sql
  • proto/exo/v1/kg.proto, proto/exo/v1/kg.pb.go, proto/exo/v1/kg_grpc.pb.go
  • server/kg_server.go

Phase 5: Desktop Application — NOT STARTED (Kotlin, out of scope for Go backend)

Phase 6: Remote Access & Backup — NOT STARTED