Release v0.6.0: cross-agent memory, plugin learn, code graph

CHANGELOG.md

@@ -5,6 +5,29 @@ All notable changes to Headroom will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.6.0] - 2026-04-11
+
+### Added
+- **Cross-agent memory** — Claude saves a fact, Codex reads it back. All agents sharing one proxy share one memory store. Project-scoped DB at `.headroom/memory.db`, auto user_id from `$USER`.
+- **Agent provenance tracking** — every memory records which agent saved it (`source_agent`, `source_provider`, `created_via`), with edit history on updates.
+- **LLM-mediated dedup** — on `memory_save`, enriched response hints similar existing memories to the LLM. Background async dedup auto-removes >92% cosine duplicates. Zero extra LLM calls.
+- **Memory for OpenAI and Gemini handlers** — context injection + tool handling wired into all three provider handlers (Anthropic, OpenAI, Gemini).
+- **Plugin architecture for `headroom learn`** — each agent (Claude, Codex, Gemini) is a self-contained plugin. External plugins register via `headroom.learn_plugin` entry points. `--agent` flag for CLI.
+- **GeminiScanner** for `headroom learn` — reads `~/.gemini/tmp/*/chats/session-*.json` and `.jsonl`.
+- **Code graph integration** — `headroom wrap claude --code-graph` auto-indexes the project via [codebase-memory-mcp](https://github.com/DeusData/codebase-memory-mcp) for call-chain traversal, impact analysis, and architectural queries. Opt-in, ~200 token overhead with Claude Code's MCP Tool Search.
+- **OpenAI embedder auto-detection** — memory backend uses OpenAI embeddings when `sentence-transformers` is unavailable (no torch/2GB dependency needed).
+- **Live traffic learning flush** — `headroom wrap <agent> --learn` flushes learned patterns to the correct agent-native file (MEMORY.md / AGENTS.md / GEMINI.md) at proxy shutdown.
+
+### Changed
+- **CodeCompressor disabled by default** — AST-based code compression produced invalid syntax on 40% of real files. Code now passes through uncompressed. Use `--code-graph` for code intelligence instead, or re-enable with `--code-aware`.
+- **Shared tool name map** — consolidated tool normalization across all learn plugins into `_shared.py`.
+- **Dynamic CLI agent detection** — `headroom learn` discovers agents via plugin registry, no hardcoded choices.
+
+### Fixed
+- **CodeCompressor statement-based truncation** — body truncation now walks AST statements (not lines), never cuts mid-expression. Fixes syntax errors on multi-line dict literals and function calls.
+- **Docstring FIRST_LINE mode** — uses source lines directly instead of reconstructing from byte offsets. Properly handles all quote styles.
+- **Memory shutdown queue drain** — patterns in the save queue were lost on proxy shutdown. Now drained before exit.
+
 ## [Unreleased]
 
 ### Added

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "headroom-ai"
-version = "0.5.21"
+version = "0.6.0"
 description = "The Context Optimization Layer for LLM Applications - Cut costs by 50-90%"
 readme = "README.md"
 license = "Apache-2.0"