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## Description Makes **tokensave** ([github.com/aovestdipaperino/tokensave](https://github.com/aovestdipaperino/tokensave)) the **primary coding-task compressor** that `headroom wrap` installs, and demotes **Serena** to a **backup**. tokensave is a local semantic code-graph MCP server (`tokensave serve`): the agent queries it for symbols, call chains, and impact analysis instead of grepping/reading whole files — the same role Serena filled, but as a pre-indexed graph. Serena now only registers when tokensave is unavailable (or when forced with `--serena`). Closes # ## Type of Change - [ ] Bug fix (non-breaking change that fixes an issue) - [x] New feature (non-breaking change that adds functionality) - [ ] Breaking change (fix or feature that would cause existing functionality to change) - [ ] Documentation update - [ ] Performance improvement - [ ] Code refactoring (no functional changes) ## Changes Made - `headroom/graph/tokensave_installer.py` (new): fetch the prebuilt tokensave release binary for the platform (release-binary only — no `cargo` compile at wrap time); honors `HEADROOM_BINARIES_OFFLINE`; returns `None` (→ Serena) when no asset exists (e.g. x86_64 macOS) or the download fails. - `mcp_registry`: `build_tokensave_spec()`; registration/disable/migrate go through the existing `ServerSpec` + ownership-ledger flow, identical to Serena. - `cli/wrap.py`: new `_setup_coding_compressor` primary/backup policy; tokensave setup/disable/migrate/index helpers. New flags `--no-tokensave` (skip primary) and `--serena` (force backup on); `--no-serena` now means "never register the backup". Default wrap removes a previously Headroom-installed Serena entry once tokensave is primary (user-managed entries preserved). `--code-graph` repointed to tokensave; the legacy `codebase-memory-mcp` install path is dropped (unwrap still cleans up legacy entries). `unwrap claude|codex` remove a ledger-owned tokensave entry. - Strands `HeadroomBundle`: `enable_tokensave_mcp=True` (primary); `enable_serena_mcp` now defaults `False` (backup). - `docs/content/docs/proxy.mdx`: `--code-graph` description updated from codebase-memory-mcp to tokensave. - Tests: tokensave installer (incl. error paths), register/disable/migrate, primary/backup policy, and the binary-resolution/indexing helpers. A scoped `tests/test_cli/conftest.py` offline guard keeps the CLI suite hermetic. ## Testing - [x] Unit tests pass (`pytest`) - [x] Linting passes (`ruff check .`) - [x] Type checking passes (`mypy headroom`) - [x] New tests added for new functionality - [ ] Manual testing performed ### Test Output ```text $ uv run pytest -q tests/test_graph_tokensave.py tests/test_cli/test_tokensave_setup.py tests/test_cli/test_tokensave_helpers.py 41 passed $ uv run pytest -q tests/test_cli/ tests/test_graph.py tests/test_graph_tokensave.py 421 passed # full CLI + graph suites, incl. all pre-existing Serena/unwrap/registry tests $ uv run pytest -q tests/test_mcp_registry/ tests/test_proxy_healthchecks.py passed $ uv run ruff format --check headroom/ tests/ # 822 files already formatted $ uv run ruff check <changed files> # All checks passed! $ uv run mypy headroom/graph/tokensave_installer.py headroom/mcp_registry/install.py Success: no issues found in 2 source files # Coverage on new module headroom/graph/tokensave_installer.py 99% ``` ## Real Behavior Proof - Environment: macOS (darwin arm64), Python 3.14, `uv` dev env; tokensave 7.0.2 binary present on PATH and exercised against this repo's `.tokensave/` graph during development. The installer pins release **v7.0.2** (SHA-256-verified) across macOS arm64, Linux aarch64/x86_64, and Windows x86_64/aarch64. - Exact command / steps: `headroom wrap claude` registers `tokensave serve` as the primary MCP code-graph server and indexes the project; with the binary removed from PATH and `HEADROOM_BINARIES_OFFLINE=1`, the same command falls back to registering Serena. Behavior is pinned by the unit tests (binary-present → tokensave registered + Serena entry removed; binary-absent → Serena fallback; `--serena` forces backup on; `--no-serena` suppresses it; `--no-tokensave` disables primary). - Observed result: tokensave registered as primary on the binary-present path; Serena registered on the unavailable path; unwrap removes only ledger-owned entries. - Not tested: live end-to-end agent session inside Claude Code / Codex against a real provider API; Windows/Linux release-asset download (covered by unit tests with mocked archives, not a live fetch). ## Review Readiness - [x] I have performed a self-review - [x] This PR is ready for human review ## Checklist - [x] My code follows the project's style guidelines - [x] I have performed a self-review of my code - [x] I have commented my code, particularly in hard-to-understand areas - [x] I have made corresponding changes to the documentation - [x] My changes generate no new warnings - [x] I have added tests that prove my fix is effective or that my feature works - [x] New and existing unit tests pass locally with my changes - [ ] I have updated the CHANGELOG.md if applicable ## Additional Notes - CHANGELOG is left untouched: this repo generates it via release-please from Conventional Commits, so a manual edit is N/A. - `strands/bundle.py` shows 0% patch coverage because that module hard-imports the optional `strands` SDK, which CI does not install (the pre-existing `_make_serena_client` was likewise uncovered) — not a regression. - A `test (3)` shard failure on `headroom.memory.bridge` is a pre-existing offline-CI flake (cannot reach huggingface.co); it touches no file in this PR and the scoped offline guard only applies under `tests/test_cli/`. 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com> |
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| components | ||
| content/docs | ||
| lib | ||
| overrides | ||
| proposals | ||
| screenshots | ||
| spec | ||
| superpowers/plans | ||
| .gitignore | ||
| auth-modes.md | ||
| bedrock.md | ||
| bun.lock | ||
| claude-code-vertex-headroom.md | ||
| cortex-code.md | ||
| next.config.mjs | ||
| observability.md | ||
| output-token-reduction-guide.md | ||
| package-lock.json | ||
| package.json | ||
| postcss.config.mjs | ||
| proxy.ts | ||
| README.md | ||
| rtk-architecture.md | ||
| rtk-loop-weighting.md | ||
| source.config.ts | ||
| tsconfig.json | ||
docs
This is a Next.js application generated with Create Fumadocs.
Run development server:
npm run dev
# or
pnpm dev
# or
yarn dev
Open http://localhost:3000 with your browser to see the result.
Explore
In the project, you can see:
lib/source.ts: Code for content source adapter,loader()provides the interface to access your content.lib/layout.shared.tsx: Shared options for layouts, optional but preferred to keep.
| Route | Description |
|---|---|
app/(home) |
The route group for your landing page and other pages. |
app/docs |
The documentation layout and pages. |
app/api/search/route.ts |
The Route Handler for search. |
Fumadocs MDX
A source.config.ts config file has been included, you can customise different options like frontmatter schema.
Read the Introduction for further details.
Learn More
To learn more about Next.js and Fumadocs, take a look at the following resources:
- Next.js Documentation - learn about Next.js features and API.
- Learn Next.js - an interactive Next.js tutorial.
- Fumadocs - learn about Fumadocs