c59066949a
- Add Layered() method to Go SDK for per-source-class consensus queries - Add LayeredQueryParams, LayeredResult, TierResolution types to Go SDK - Create conflict example demonstrating Skeptic and Layered endpoints - Update quickstart.md with sections 6 (conflict detection) and 7 (authority tiers) - Remove tracked Go binary and add data/ to .gitignore The new quickstart sections demonstrate Episteme's differentiating features: - Skeptic endpoint shows "Trust but Verify" conflict analysis - Layered endpoint shows per-tier resolution (Clinical vs Anecdotal) Note: Pre-existing large files flagged by pre-commit hook (technical debt from prior sessions) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
105 lines
5.7 KiB
Markdown
105 lines
5.7 KiB
Markdown
# Episteme (StemeDB)
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A probabilistic knowledge graph database that stores Claims, not Facts. Append-only Merkle DAG with read-time resolution via Lenses.
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**Core Concept:** "Git for Truth" - conflicting assertions coexist, resolved at query time through Consensus, Recency, Authority, or custom Lenses.
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## Find Your Guide
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| If you need to... | Read this |
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|-------------------|-----------|
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| **Get started fast** | [quickstart.md](./quickstart.md) |
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| **Understand the vision** | [vision.md](./vision.md) |
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| **See use cases** | [use-cases/README.md](./use-cases/README.md) |
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| **Understand architecture** | [architecture.md](./architecture.md) |
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| **Learn data structures** | [docs/data-structures.md](./docs/data-structures.md) |
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| **See the roadmap** | [roadmap.md](./roadmap.md) |
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| **Build apps on Episteme** | [docs/app-concepts/index.md](./docs/app-concepts/index.md) |
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| **Consumer Health vertical** | [docs/app-concepts/consumer-health.md](./docs/app-concepts/consumer-health.md) |
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| **Use Go SDK** | [ai-lookup/services/sdk.md](ai-lookup/services/sdk.md) |
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| **Write Rust code** | [.claude/guides/backend/rust-guidelines.md](.claude/guides/backend/rust-guidelines.md) |
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| **Set up local dev** | [.claude/guides/local/setup.md](.claude/guides/local/setup.md) |
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| **Run tests** | [.claude/guides/local/testing.md](.claude/guides/local/testing.md) |
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| **Understand quality checks** | [.claude/guides/local/quality-checks.md](.claude/guides/local/quality-checks.md) |
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| **Learn about simulation** | [ai-lookup/features/simulation.md](ai-lookup/features/simulation.md) |
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| **Advance the simulator** | [arena-roadmap.md](./arena-roadmap.md) |
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| **Work on storage/DAG** | Load skill: `stemedb-core` |
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| **Implement a Lens** | Load skill: `stemedb-lens` |
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| **Plan a milestone** | `/plan-milestone` command |
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| **Analyze use case gaps** | `/analyze-gaps` command |
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| **Add an API endpoint** | [.claude/guides/backend/api-endpoints.md](.claude/guides/backend/api-endpoints.md) |
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| **Integrate with AI tools** | [.claude/guides/integrations/ai-coding-assistant-integration.md](.claude/guides/integrations/ai-coding-assistant-integration.md) |
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| **ADK-Go + Episteme** | [.claude/guides/integrations/adk-go-episteme.md](.claude/guides/integrations/adk-go-episteme.md) |
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## Critical Rules
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- **Append-Only:** NEVER mutate existing Assertions. Create new ones.
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- **Content-Addressed:** Assertion ID = BLAKE3 hash of content.
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- **No Unwrap:** NEVER use `unwrap()` or `expect()` in production code. CI enforces via `clippy::unwrap_used` and `clippy::expect_used` at deny level.
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- **Defensive Writes:** All writes go through WAL with fsync.
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- **Zero-Copy:** Use `rkyv` for serialization. ALWAYS use `stemedb_core::serde::{serialize, deserialize}` — NEVER use raw `AllocSerializer` in production code.
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- **Instrument Critical Paths:** Use `#[instrument]` on public methods in WAL, storage, ingestion, and lens code. Include meaningful fields (key_len, payload_len, offset, candidates_count, lens).
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- **Structured Logging:** Use `tracing` (info!, warn!, error!) instead of `println!`/`eprintln!`. Clippy enforces via `print_stdout`/`print_stderr` at warn level. CLI binaries (e.g., `stemedb-sim`) may use `#![allow()]` for user-facing output.
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- **Document Changes:** Update `ai-lookup/` when adding new types/concepts. Keep skills in sync with code.
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- **No Git Operations:** NEVER use git stash, git branch, git checkout, or any git operations unless the user explicitly tells you to.
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## Quick Reference
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```bash
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# Build
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cargo build --workspace
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# Test
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cargo test --workspace
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# Lint (must pass before commit)
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cargo clippy --workspace -- -D warnings
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cargo fmt --check
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```
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## Specialized Agents
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| Domain | Agent | When to use |
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|--------|-------|-------------|
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| **Product Vision** | `episteme-product-visionary` | Use cases, "why not Postgres?", product-market fit |
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| General Rust | `primary-developer` | Feature implementation, refactoring |
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| Code Quality | `rust-quality-engineer` | Reviews, test coverage, clippy |
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| Storage | `storage-engine-architect` | WAL, LSM, crash recovery |
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| Graph Engine | `rust-graph-engine-architect` | Lock-free structures, cache optimization |
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| Defensive | `defensive-systems-architect` | Rate limiting, circuit breakers, hostile input |
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| Lenses | `stemedb-lens-architect` | Query resolution, ranking algorithms |
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| Planning | `stemedb-planner` | Milestone planning, roadmap |
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## Architecture Overview
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```
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Write Path (Spine): Read Path (Cortex):
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[Agent] -> [Ingestion] [Agent] <- [Lens Engine]
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[WAL/Fsync] [Index Lookup]
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v |
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[KV Store] <--------------------+
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```
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## Crates
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| Crate | Purpose | Status |
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|-------|---------|--------|
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| `stemedb-core` | Assertion, LifecycleStage, MaterializedView, types | ✅ Implemented |
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| `stemedb-wal` | Write-ahead log with crash recovery | ✅ Implemented |
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| `stemedb-storage` | KVStore, VoteStore, IndexStore, TrustRankStore | ✅ Implemented |
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| `stemedb-ingest` | Ingestion pipeline with signature verification | ✅ Implemented |
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| `stemedb-query` | Query engine, Materializer for O(1) MV: reads | ✅ Implemented |
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| `stemedb-lens` | Lenses (Recency, Consensus, Authority, Vote/Trust-aware) | ✅ Implemented |
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| `stemedb-api` | HTTP API with axum + utoipa OpenAPI docs | ✅ Implemented |
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| `stemedb-sim` | Simulation for testing the pipeline | ✅ Implemented |
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## SDKs
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| SDK | Purpose | Status |
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|-----|---------|--------|
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| `sdk/go/steme` | Go HTTP client with Ed25519 signing and fluent builders | ✅ Implemented |
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| `sdk/go/adk` | ADK-Go tools and callbacks for AI agents | ✅ Implemented |
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