5832c70369
OpenCode 2.0.27 withholds the built-in Shell tool regardless of config, client (desktop app vs TUI) or model -- all three were eliminated by test. MCP is the one channel demonstrably under user control, so add a stdio server that restores it. Stdlib-only and deliberately unfiltered so every line is auditable: a third-party package with unrestricted command execution is an opaque trust decision. Two choices taken from AGENTS.md: - PATH correction. OpenCode spawns MCP servers that can inherit a bare PATH exactly as launchd does, which is the documented cause of ffmpeg failing for m4b/MP3 export. /opt/homebrew/bin is prepended to the child only. - background=true detaches into its own session (start_new_session) so long-running processes -- TTS server, web UI -- survive both the MCP server exiting and an OpenCode restart, and log to a file rather than a pipe that would eventually block the writer. Selftest drives a full handshake and exits non-zero on failure, so a misbehaving server is caught before an OpenCode restart rather than after. It found two real bugs during development: a double-encoding blind spot in an exit-code assertion (tool output is JSON nested in JSON-RPC, so its quotes are escaped), and an f-string escape that is a syntax error on Python 3.11, the project's stated floor. Verified: py_compile clean, ruff clean, selftest 8/8, background mode detached and logged, exit codes and stdout/stderr separation correct. Full suite unchanged at 8 failed (pre-existing) / 803 passed.
UmbraAudio
Quality-first multi-pass audiobook generation from English manuscripts.
Features
- 5-pass pipeline: Analysis → Voice Design → Mapping → Test → Generate
- Multi-engine TTS: Chatterbox (primary), Qwen3-TTS (secondary)
- LLM-enhanced: BookNLP for NLP, LLM for profiling/emotion/pronunciation
- Web review: FastAPI + HTMX at checkpoints for human approval
Quick Start
python -m umbraaudio.cli init <manuscript.epub> --name 'My Book'
python -m umbraaudio.cli analyze
python -m umbraaudio.cli voices
python -m umbraaudio.cli review
Requirements
- Python 3.11+
- NVIDIA GPU with CUDA support (RTX 3060 or better recommended)
- ffmpeg
Development
pip install -e ".[dev]"
ruff check umbraaudio/
pytest tests/ -v
Commit cadence: commit at least once every Sunday. Never leave a week (let alone a month) of work uncommitted — a single accidental
git checkouton 2026-09-20 wiped out a month of changes toumbraaudio/web/routes.py. SeeAGENTS.md→ Commit Cadence.
scripts/commit_check.sh enforces the nudge: it exits non-zero once the tree has been dirty
longer than a week. The LaunchAgent com.umbraaudio.commitcheck runs it every Sunday at
18:00 and posts a macOS notification when there is uncommitted work.
scripts/commit_check.sh # warn if dirty > 7 days
scripts/commit_check.sh --days 3 # tighter threshold
scripts/commit_check.sh --any # warn on any uncommitted change
Rebuilding from source
The repo tracks source only; large runtime data is reconstructed as needed.
-
Models: weights are not committed (see
.gitignore). Download them:bash scripts/download_models.sh # ~9 GB, targets ./models -
Qwen3-TTS is a git submodule pinned to upstream commit
022e286:git submodule update --init --recursiveThe
tts_server/web-demo backend includes a local UI customization toqwen_tts/cli/demo.py. It is preserved as a patch — reapply it after checking out the submodule:cd Qwen3-TTS && git apply ../scripts/qwen3_tts_demo_umbra_patch.patch -
Environment: copy/keep
.env(contains secrets) and setUMBRA_TTS__*model paths undermodels/.
Book projects (e.g. DealHunterShip_...) are committed separately under their
own project directories and are not part of this program repository.