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从官方 Git 仓库导入 chandra447/pi-hermes-memory 在 tag v0.9.10 (df624056a2e8c68bc89ba0a81e1c120856ec9665,2026-10-02)的源码快照。 本次仅导入源码,尚未接入组合包:package.json、加载顺序、依赖与权限策略 均未改动。 - 原样导入 src/、tests/、docs/、scripts/、README、CHANGELOG、PLAN、 AGENTS 与 LICENSE;该快照共 156 个上游文件。 - 剔除嵌套 .git、上游 .github 工作流、.ralph/、.claude/、node_modules、 覆盖率与构建产物。 - 新增中文 UPSTREAM.md,记录来源,以及启用前必须完成的待决事项: 在 pi-compaction 之前注册加载顺序、better-sqlite3 版本与根 allowScripts 对齐、strip-ansi 解析确认。 - 说明选择 tag 而非 main 的原因:导入时上游 main 已领先至 24fcd8ad26fc27badb8d7dbaf8034645de07b893(2026-10-11),选 tag 是为 对应一个已发布、可复现的版本。 尚未接线。启用前还需反转 tests/extension-load.test.ts 中"不得加载 Hermes"的断言,并同步 pi-tool-search 分组、权限策略与文档。 验证:快照 156 个上游文件全部导入,目录内仅多出 UPSTREAM.md 一份; 已确认与上游 main 内容存在差异,证明取的是 tag 而非 main。
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Pi Hermes Memory Extension
Project Overview
This is a Pi coding agent extension that brings Hermes-style persistent memory and a learning loop to any Pi user. After pi install, users get persistent memory across sessions, a background learning loop, and session-end flush.
v0.1 is complete (119 tests, v0.1.0 tagged). Current work is v0.2: Skills + Smart Curation — see docs/0.2/TASKS.md.
Architecture
- Language: TypeScript (loaded via jiti, no compilation needed at runtime)
- Runtime: Pi extension API (
@earendil-works/pi-coding-agent) - Storage: Two markdown files (
MEMORY.md,USER.md) in~/.pi/agent/memory/ - Entry point:
src/index.ts— registers tools, event handlers, and commands
Key Files
| File | Purpose |
|---|---|
src/index.ts |
Extension entry point — wires all components together |
src/types.ts |
Shared TypeScript interfaces + getMessageText() helper |
src/constants.ts |
Prompts, defaults, delimiter |
src/store/memory-store.ts |
Core MemoryStore class — CRUD, persistence, frozen snapshot |
src/store/content-scanner.ts |
scanContent() — injection/exfiltration detection |
src/tools/memory-tool.ts |
registerMemoryTool() — LLM tool definition |
src/handlers/background-review.ts |
setupBackgroundReview() — learning loop via pi.exec |
src/handlers/session-flush.ts |
setupSessionFlush() — pre-compaction/shutdown flush |
src/handlers/insights.ts |
registerInsightsCommand() — /memory-insights command |
PLAN.md |
Full v0.1 implementation plan with Hermes source file reference map |
docs/ROADMAP.md |
Full roadmap with Hermes competitive analysis + gap analysis |
docs/0.2/TASKS.md |
v0.2 task breakdown — Skills + Smart Curation |
Design Decisions
- Frozen snapshot — Memory is injected into system prompt once at session start, never mutated mid-session (preserves Pi's prompt caching)
- Atomic writes — Temp file +
fs.rename()for crash safety pi.exec()for background review — Stays within Pi's intended extension API§delimiter — Same as Hermes for consistency- No SQLite — Pi has its own
SessionManager, we read from it directly
Hermes Source Reference
The implementation is ported from the Hermes agent harness. See PLAN.md → "Hermes Source File Reference Map" for exact files and line ranges to read.
Roadmap & Task Tracking
- Roadmap:
docs/ROADMAP.md— full roadmap with Hermes competitive analysis, gap analysis, and phased plan (v0.1 → v0.5 → v1.0) - v0.1 tasks (complete):
docs/0.1/TASKS.md - v0.2 tasks (current):
docs/0.2/TASKS.md— Skills, auto-consolidation, correction detection, tool-call-aware nudge
Workflow:
- Pick a task from
docs/0.2/TASKS.md - Mark it
[~](in progress) - Implement it
- Mark it
[x](done) with the commit hash - Move to the next task
Before starting any work, read docs/0.2/TASKS.md to see what's next.
Development
# Type check
npm run check
# Test locally
pi -e ./src/index.ts
Installation (for users)
pi install npm:pi-hermes-memory
# or from git
pi install git:github.com/chandra447/pi-hermes-memory