deepseek-harness/website/zh-CN/api/harness/bash-env.md

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# ctx.bashEnv

`BashEnvRegistry` — provided by `@deepseek-ai/dsh-tool-bash`.

Registry (`ctx.bashEnv`) for trusted, per-execution `DSH_*` variables. The namespace is rebuilt for every model bash call: ambient `DSH_*` values are discarded by the executor, then the registry's current snapshot is injected. Built-in shell facts remain owned by the registry itself while plugins can register additional, enumerable facts with effect-scoped disposal.

[Source](https://github.com/deepseek-harness/deepseek-harness/blob/master/packages/bash/tool-bash/src/index.ts#L103)

### ctx.bashEnv.register(contributor)

```ts website-api
/**
 * Register one environment contributor. Names and keys are unique; built-in
 * keys are reserved. Registration is disposed with the calling plugin fiber.
 * @param contributor - declared key ownership and per-execution resolver.
 * @returns the disposer that unregisters the contribution.
 */
register(contributor: BashEnvContributor): () => void
```

Register one environment contributor. Names and keys are unique; built-in keys are reserved. Registration is disposed with the calling plugin fiber.

- `contributor` — declared key ownership and per-execution resolver.

**Returns** the disposer that unregisters the contribution.

[Source](https://github.com/deepseek-harness/deepseek-harness/blob/master/packages/bash/tool-bash/src/index.ts#L124)

### ctx.bashEnv.collect(execution)

```ts website-api
/**
 * Build the trusted `DSH_*` snapshot for one bash tool execution.
 * @param execution - the current tool execution.
 * @returns an immutable environment overlay containing built-ins and current contributions.
 */
collect(execution: ToolExecution): DshEnvironment
```

Build the trusted `DSH_*` snapshot for one bash tool execution.

- `execution` — the current tool execution.

**Returns** an immutable environment overlay containing built-ins and current contributions.

[Source](https://github.com/deepseek-harness/deepseek-harness/blob/master/packages/bash/tool-bash/src/index.ts#L166)

### ctx.bashEnv.list()

```ts website-api
/**
 * Enumerate plugin-contributed variables without executing their resolvers.
 * @returns declarations sorted by environment variable name.
 */
list(): BashEnvVariableInfo[]
```

Enumerate plugin-contributed variables without executing their resolvers.

**Returns** declarations sorted by environment variable name.

[Source](https://github.com/deepseek-harness/deepseek-harness/blob/master/packages/bash/tool-bash/src/index.ts#L198)