Yichen Jiang
053979cdec
The coverage lanes flag four uncovered locations after the master merge: the spec.owner spread in tool-bash/tool-pwsh observe, the workflow mirror's owner spread, and tool-pwsh's outer observation catch. The covering tests existed only on the stacked job-kill branch; give this branch its own: an owned background run per shell asserting the fenced ownerSession row, the owned workflow mirror run, and a throwing open() through the pwsh outer catch. The windows-only file-reference-local gap reproduces on master's own windows lane at the merge point and stays upstream.
description, kind
| description | kind |
|---|---|
| The bash capability family for deployments and maintainers choosing and composing a shell executor, sandboxing, and the model-facing bash and pwsh tools. | package-group |
shell/ — bash capability family
English | 中文
Summary
The shell group provides command execution to agents: run a foreground command and read its bounded output, or start a background process and poll it, on POSIX with Bash and on Windows with PowerShell. Exactly one executor implementation is mounted per composition; the sandboxing executors confine every command through the sandbox capability, and the model-facing bash and pwsh tools sit on top of whichever executor is mounted. Choose a Bash executor for POSIX, a PowerShell executor for Windows, and pick the sandboxing variant when commands need file-level confinement.
Table of Contents
Packages
| Package | Role | ctx key |
|---|---|---|
shell |
Defines the executor contract: foreground runs, background handles, and request resolution | ctx.shell |
bash-local |
Runs Bash commands as fresh bash -c processes on POSIX |
registers ctx.shell |
bash-sandbox |
Runs Bash commands confined through the sandbox capability, reporting denials as facts | registers ctx.shell |
pwsh-local |
Runs PowerShell commands as fresh pwsh -Command processes on Windows |
registers ctx.shell |
pwsh-sandbox |
Runs PowerShell commands confined through the sandbox capability | registers ctx.shell |
shell-env |
Supplies the managed DSH_* environment every shell command receives |
ctx.shellEnv |
tool-bash |
Exposes Bash execution and background jobs to the model as the bash tool |
registers on ctx.tools |
tool-bash-persistent |
Runs model shell calls in one owner-isolated persistent Bash session | registers on ctx.tools |
tool-pwsh |
Exposes PowerShell execution to the model as the pwsh tool |
registers on ctx.tools |
tool-pwsh-persistent |
Runs model shell calls in one owner-isolated persistent PowerShell session | registers on ctx.tools |
A profile layer selects exactly one executor implementation (the win32 layer swaps the POSIX rows for the pwsh ones; mounting two fails loud on the duplicate service registration) and the model-facing tools it needs. A sandboxed composition also selects a ctx.sandbox provider and ctx.sandboxPolicy; the base bundle owns the shipped wiring.
Related documentation
- Bash executor subsystem — the shared request/spec vocabulary, results, background processes, and the service contract.
- Sandbox subsystem — the confinement capability the sandboxing executors consume.
Dev Note
None.