spice-harness 0.19.0

Simultaneous Production, Integration, and Control Environment: an agent harness for coding repositories.

spice

Simultaneous Production, Integration, and Control Environment.

spice is an installed, repo-native harness for operating coding agents. It treats the agent transcript as the source of truth and the repository filesystem as the steering channel; supervision, task routing, git pressure, live feedback, and hygiene gates are derived from those two surfaces.

It is built for agents moving fast in parallel: every correction is durable, every task boundary is observable, and the gate catches structural drift before it lands.

_{Operator steering arrives in the live stream; an assistant ACK retires the exact inbox key from the durable filesystem queue.}

What it does

• Semantic ACKs: steering is not considered handled until the agent acknowledges the durable key in assistant prose.
• Task allocation: spice task next owns work selection; task boundaries own git synchronization and review phases.
• Conscience: curated maxims judge assistant prose while work is still in flight, then route violations back as ordinary steering.
• Constitution: pre-commit and spice study ... enforce repository shape, file/routine limits, env policy, reachability, assertion density, private internals, and commit-message rules.
• Serve UI: spice serve exposes lanes, teams, live transcripts, steering, attachments, task routing, and browser-visible diagnostics.

See docs/overview.md for the operating model and docs/interface.md for the serve UI.

Commands

Surface	Command
Prepare a repo	spice init / spice dev doctor
Run through the agent wrapper	spice agent run -- <cmd>
Maintain a worktree-bound agent	spice agent ensure / spice agent supervise
Pull allocator work	spice task next
Rehydrate context	spice session briefing
Open the operator UI	spice serve
Run studies and gates	spice study ... / git pre-commit hook

Configuration lives in CONFIG.md. The design contract lives in DESIGN.md. Wrapper command behavior is detailed in docs/cli/wrapper-commands.md, and the public repo-tool library seam is in docs/library-seam.md.

Install

uv tool install -e /path/to/spice-main
# or, for the released package:
uv tool install spice-harness

cd /path/to/your/repo
spice init
spice dev doctor

The default install is a uv tool. Operators who deploy from a main tree should use the editable form so the installed spice command resolves to that tree; that editable main tree is the server deployment. Other worktrees remain operated trees and do not supply their own runtime.

The common-dir layout is opt-in. Set uv's tool directories before installing if you deliberately want the tool environment and executable under a repository's shared git directory:

repo=/path/to/your/repo
common_dir=$(cd "$repo" && git rev-parse --path-format=absolute --git-common-dir)
UV_TOOL_DIR="$common_dir/spice/tools" \
UV_TOOL_BIN_DIR="$common_dir/spice/bin" \
uv tool install -e /path/to/spice-main

Graceful degradation

RTK, the local judge, and speech synthesis are optional companions. When they are unavailable, spice keeps the transcript, steering, task board, and constitution working; only compaction, maxim feedback, or audio narration degrade. Runtime and configuration details are in CONFIG.md.

Release

Release workflow is documented in docs/release.md. Most users only need to know that releases are cut from clean synchronized worktrees through the repository's mounted spice release command.

Status

Work in progress toward a standalone, releasable product. The loop described here is real, exercised daily, and guarded by the same constitution that spice init installs elsewhere.