Merge refreshed docs/i18n-batch-cds-postmortem into docs/i18n-batch-rfc

# Conflicts:
#	.agents/notes/implemented/architecture/2026-06-11-content-block-vocabulary.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-11-content-block-vocabulary.zh.md
#	.agents/notes/implemented/architecture/2026-06-11-custom-schema-dsl.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-11-custom-schema-dsl.zh.md
#	.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-11-dev-invariants-over-deep-readonly.zh.md
#	.agents/notes/implemented/architecture/2026-06-11-event-sourced-sessions.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-11-event-sourced-sessions.zh.md
#	.agents/notes/implemented/architecture/2026-06-11-microkernel-event-taxonomy.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-11-microkernel-event-taxonomy.zh.md
#	.agents/notes/implemented/architecture/2026-06-11-runtime-arg-validation.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-11-runtime-arg-validation.zh.md
#	.agents/notes/implemented/architecture/2026-06-11-structured-error-taxonomy.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-11-structured-error-taxonomy.zh.md
#	.agents/notes/implemented/architecture/2026-06-11-tool-schemas-in-prompt-assembly.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-11-tool-schemas-in-prompt-assembly.zh.md
#	.agents/notes/implemented/architecture/2026-06-13-capability-seams.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-13-capability-seams.zh.md
#	.agents/notes/implemented/architecture/2026-06-13-twin-llm-adapters.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-13-twin-llm-adapters.zh.md
#	.agents/notes/implemented/architecture/2026-06-14-session-persistence.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-14-session-persistence.zh.md
#	.agents/notes/implemented/architecture/2026-06-15-turn-enclosure-invariant.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-15-turn-enclosure-invariant.zh.md
#	.agents/notes/implemented/architecture/2026-06-17-filesystem-capability-seam.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-17-filesystem-capability-seam.zh.md
#	.agents/notes/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-18-agent-lifecycle-and-ownership-seams.zh.md
#	.agents/notes/implemented/architecture/2026-06-18-session-surface.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-18-session-surface.zh.md
#	.agents/notes/implemented/architecture/2026-06-18-shared-persistence-write-coordinator.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-18-shared-persistence-write-coordinator.zh.md
#	.agents/notes/implemented/architecture/2026-06-20-branded-ids.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-20-branded-ids.zh.md
#	.agents/notes/implemented/architecture/2026-06-20-extract-example-app-packages.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-20-extract-example-app-packages.zh.md
#	.agents/notes/implemented/architecture/2026-06-20-package-hierarchy.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-20-package-hierarchy.md
#	.agents/notes/implemented/architecture/2026-06-20-package-hierarchy.zh.md
#	.agents/notes/implemented/architecture/2026-06-21-mandatory-app-attribution-headers.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-21-mandatory-app-attribution-headers.zh.md
#	.agents/notes/implemented/architecture/2026-06-24-web-capability-seam.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-24-web-capability-seam.zh.md
#	.agents/notes/implemented/architecture/2026-06-26-file-context-as-event-gate.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-26-file-context-as-event-gate.zh.md
#	.agents/notes/implemented/architecture/2026-06-30-bash-stdin-env-trusted-plugin-surface.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-30-bash-stdin-env-trusted-plugin-surface.zh.md
#	.agents/notes/implemented/architecture/2026-06-30-event-domain-semantics.i18n.yaml
#	.agents/notes/implemented/architecture/2026-06-30-event-domain-semantics.zh.md
#	.agents/notes/implemented/architecture/2026-07-02-fs-per-session-cwd.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-02-fs-per-session-cwd.zh.md
#	.agents/notes/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.zh.md
#	.agents/notes/implemented/architecture/2026-07-02-tool-render-intent-union.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-02-tool-render-intent-union.zh.md
#	.agents/notes/implemented/architecture/2026-07-03-filesystem-directory-listing-seam.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-03-filesystem-directory-listing-seam.zh.md
#	.agents/notes/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.zh.md
#	.agents/notes/implemented/architecture/2026-07-05-reconstructable-requests.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-05-reconstructable-requests.zh.md
#	.agents/notes/implemented/architecture/2026-07-05-subagent-provider-lifecycle-events.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-05-subagent-provider-lifecycle-events.zh.md
#	.agents/notes/implemented/architecture/2026-07-06-timeout-deadline-library.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-06-timeout-deadline-library.zh.md
#	.agents/notes/implemented/architecture/2026-07-07-tool-call-timeout-policy.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-07-tool-call-timeout-policy.zh.md
#	.agents/notes/implemented/architecture/2026-07-08-agent-scope-contexts.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-08-agent-scope-contexts.zh.md
#	.agents/notes/implemented/architecture/2026-07-12-agent-scope-runtime-design.i18n.yaml
#	.agents/notes/implemented/architecture/2026-07-12-agent-scope-runtime-design.zh.md
#	.agents/notes/implemented/feature/2026-06-14-acp-agent-client-protocol.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-14-acp-agent-client-protocol.zh.md
#	.agents/notes/implemented/feature/2026-06-14-acp-multi-session.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-14-acp-multi-session.zh.md
#	.agents/notes/implemented/feature/2026-06-15-code-mode.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-15-code-mode.zh.md
#	.agents/notes/implemented/feature/2026-06-17-filesystem-tool-schemas.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-17-filesystem-tool-schemas.zh.md
#	.agents/notes/implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.zh.md
#	.agents/notes/implemented/feature/2026-06-18-compaction-capability-seam.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-18-compaction-capability-seam.zh.md
#	.agents/notes/implemented/feature/2026-06-21-subagent-capability-seam.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-21-subagent-capability-seam.md
#	.agents/notes/implemented/feature/2026-06-21-subagent-capability-seam.zh.md
#	.agents/notes/implemented/feature/2026-06-22-acp-subagent-backend.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-22-acp-subagent-backend.zh.md
#	.agents/notes/implemented/feature/2026-06-25-ask-user-question.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-25-ask-user-question.zh.md
#	.agents/notes/implemented/feature/2026-06-29-todo-write-tool.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-29-todo-write-tool.zh.md
#	.agents/notes/implemented/feature/2026-06-30-hook-bridges.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-30-hook-bridges.zh.md
#	.agents/notes/implemented/feature/2026-06-30-hook-protocol-lib.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-30-hook-protocol-lib.zh.md
#	.agents/notes/implemented/feature/2026-06-30-interception-seams.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-30-interception-seams.zh.md
#	.agents/notes/implemented/feature/2026-06-30-session-store-fork-api.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-30-session-store-fork-api.zh.md
#	.agents/notes/implemented/feature/2026-06-30-subagent-observe-enrich.i18n.yaml
#	.agents/notes/implemented/feature/2026-06-30-subagent-observe-enrich.zh.md
#	.agents/notes/implemented/feature/2026-07-05-dynamic-workflows.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-05-dynamic-workflows.zh.md
#	.agents/notes/implemented/feature/2026-07-05-skill-system.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-05-skill-system.zh.md
#	.agents/notes/implemented/feature/2026-07-06-approval-seam.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-06-approval-seam.zh.md
#	.agents/notes/implemented/feature/2026-07-06-explicit-tool-order.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-06-explicit-tool-order.zh.md
#	.agents/notes/implemented/feature/2026-07-06-sandbox.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-06-sandbox.zh.md
#	.agents/notes/implemented/feature/2026-07-07-mcp-client-plugin.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-07-mcp-client-plugin.zh.md
#	.agents/notes/implemented/feature/2026-07-07-session-prefix.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-07-session-prefix.zh.md
#	.agents/notes/implemented/feature/2026-07-08-repeat-tool-guard.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-08-repeat-tool-guard.zh.md
#	.agents/notes/implemented/feature/2026-07-08-self-referential-cordis-toolset.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-08-self-referential-cordis-toolset.zh.md
#	.agents/notes/implemented/feature/2026-07-10-session-query-service.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-10-session-query-service.zh.md
#	.agents/notes/implemented/feature/2026-07-12-subagent-persona-tool-filter-and-depth.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-12-subagent-persona-tool-filter-and-depth.zh.md
#	.agents/notes/implemented/process/2026-06-11-doc-sync-enforcement.i18n.yaml
#	.agents/notes/implemented/process/2026-06-11-doc-sync-enforcement.zh.md
#	.agents/notes/implemented/process/2026-06-11-quality-gates.i18n.yaml
#	.agents/notes/implemented/process/2026-06-11-quality-gates.md
#	.agents/notes/implemented/process/2026-06-11-quality-gates.zh.md
#	.agents/notes/implemented/process/2026-06-11-tsdown-over-dumble.i18n.yaml
#	.agents/notes/implemented/process/2026-06-11-tsdown-over-dumble.zh.md
#	.agents/notes/implemented/process/2026-06-11-vendor-cordis-as-source.i18n.yaml
#	.agents/notes/implemented/process/2026-06-11-vendor-cordis-as-source.zh.md
#	.agents/notes/implemented/process/2026-06-16-pnpm-over-yarn.i18n.yaml
#	.agents/notes/implemented/process/2026-06-16-pnpm-over-yarn.zh.md
#	.agents/notes/implemented/process/2026-06-17-ts-build-config.i18n.yaml
#	.agents/notes/implemented/process/2026-06-17-ts-build-config.zh.md
#	.agents/notes/implemented/process/2026-06-18-markdown-cross-link-lint.i18n.yaml
#	.agents/notes/implemented/process/2026-06-18-markdown-cross-link-lint.zh.md
#	.agents/notes/implemented/process/2026-06-20-core-data-structures-catalog.i18n.yaml
#	.agents/notes/implemented/process/2026-06-20-core-data-structures-catalog.zh.md
#	.agents/notes/implemented/process/2026-06-20-generated-cordis-catalog.i18n.yaml
#	.agents/notes/implemented/process/2026-06-20-generated-cordis-catalog.zh.md
#	.agents/notes/implemented/process/2026-06-20-rfc-classification.i18n.yaml
#	.agents/notes/implemented/process/2026-06-20-rfc-classification.zh.md
#	.agents/notes/implemented/process/2026-07-02-tool-schema-catalog.i18n.yaml
#	.agents/notes/implemented/process/2026-07-02-tool-schema-catalog.zh.md
#	.agents/notes/implemented/process/2026-07-03-documentation-graph-atlas.i18n.yaml
#	.agents/notes/implemented/process/2026-07-03-documentation-graph-atlas.zh.md
#	.agents/notes/implemented/process/2026-07-04-cordis-jsdoc-completeness-gate.i18n.yaml
#	.agents/notes/implemented/process/2026-07-04-cordis-jsdoc-completeness-gate.zh.md
#	.agents/notes/implemented/process/2026-07-04-doc-tiers-and-budgets.i18n.yaml
#	.agents/notes/implemented/process/2026-07-04-doc-tiers-and-budgets.zh.md
#	.agents/notes/implemented/process/2026-07-04-generate-rfc-index-tables.i18n.yaml
#	.agents/notes/implemented/process/2026-07-04-generate-rfc-index-tables.zh.md
#	.agents/notes/implemented/process/2026-07-04-persistence-log-catalog.i18n.yaml
#	.agents/notes/implemented/process/2026-07-04-persistence-log-catalog.zh.md
#	.agents/notes/implemented/process/2026-07-05-uniform-rfc-format.i18n.yaml
#	.agents/notes/implemented/process/2026-07-05-uniform-rfc-format.zh.md
#	.agents/notes/implemented/process/2026-07-06-export-surface-jsdoc-gate.i18n.yaml
#	.agents/notes/implemented/process/2026-07-06-export-surface-jsdoc-gate.zh.md
#	.agents/notes/implemented/process/2026-07-06-generated-config-catalog.i18n.yaml
#	.agents/notes/implemented/process/2026-07-06-generated-config-catalog.zh.md
#	.agents/notes/implemented/process/2026-07-06-node-engine-floor.i18n.yaml
#	.agents/notes/implemented/process/2026-07-06-node-engine-floor.zh.md
#	.agents/notes/implemented/process/2026-07-06-parallel-github-ci-gates.i18n.yaml
#	.agents/notes/implemented/process/2026-07-06-parallel-github-ci-gates.zh.md
#	.agents/notes/implemented/process/2026-07-06-parallel-pre-push-gates.i18n.yaml
#	.agents/notes/implemented/process/2026-07-06-parallel-pre-push-gates.zh.md
#	.agents/notes/implemented/process/2026-07-10-readme-known-limitations-gate.i18n.yaml
#	.agents/notes/implemented/process/2026-07-10-readme-known-limitations-gate.zh.md
#	.agents/notes/implemented/process/2026-07-12-package-model-experience-contract.i18n.yaml
#	.agents/notes/implemented/process/2026-07-12-package-model-experience-contract.zh.md
#	.agents/notes/implemented/simplification/2026-06-19-drop-mutable-session-summary.i18n.yaml
#	.agents/notes/implemented/simplification/2026-06-19-drop-mutable-session-summary.zh.md
#	.agents/notes/implemented/simplification/2026-06-20-collapse-trace-only-session-events.i18n.yaml
#	.agents/notes/implemented/simplification/2026-06-20-collapse-trace-only-session-events.zh.md
#	.agents/notes/implemented/simplification/2026-06-20-drop-unconsumed-llm-adapter-change-event.i18n.yaml
#	.agents/notes/implemented/simplification/2026-06-20-drop-unconsumed-llm-adapter-change-event.zh.md
#	.agents/notes/implemented/simplification/2026-06-20-drop-unconsumed-llm-assembled-surfaces.i18n.yaml
#	.agents/notes/implemented/simplification/2026-06-20-drop-unconsumed-llm-assembled-surfaces.zh.md
#	.agents/notes/implemented/simplification/2026-06-20-prune-dead-seam-methods.i18n.yaml
#	.agents/notes/implemented/simplification/2026-06-20-prune-dead-seam-methods.md
#	.agents/notes/implemented/simplification/2026-06-20-prune-dead-seam-methods.zh.md
#	.agents/notes/implemented/simplification/2026-06-20-public-agent-stop-surface.i18n.yaml
#	.agents/notes/implemented/simplification/2026-06-20-public-agent-stop-surface.zh.md
#	.agents/notes/implemented/simplification/2026-06-20-remove-agent-boundary-mirror-events.i18n.yaml
#	.agents/notes/implemented/simplification/2026-06-20-remove-agent-boundary-mirror-events.zh.md
#	.agents/notes/implemented/simplification/2026-06-26-fsspec-style-fs-seam.i18n.yaml
#	.agents/notes/implemented/simplification/2026-06-26-fsspec-style-fs-seam.zh.md
#	.agents/notes/implemented/simplification/2026-07-02-remove-stream-chunk-mirror.i18n.yaml
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#	.agents/notes/implemented/simplification/2026-07-04-drop-image-content-block.i18n.yaml
#	.agents/notes/implemented/simplification/2026-07-04-drop-image-content-block.zh.md
#	.agents/notes/implemented/simplification/2026-07-04-drop-inert-request-knobs.i18n.yaml
#	.agents/notes/implemented/simplification/2026-07-04-drop-inert-request-knobs.zh.md
#	.agents/notes/implemented/simplification/2026-07-04-drop-unconsumed-web-observation-surface.i18n.yaml
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#	.agents/notes/implemented/simplification/2026-07-04-fold-stdio-ui-helper.i18n.yaml
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#	.agents/notes/implemented/simplification/2026-07-04-prune-producerless-vocabulary-variants.i18n.yaml
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#	.agents/notes/implemented/simplification/2026-07-04-prune-write-only-fs-surface.i18n.yaml
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#	.agents/notes/implemented/simplification/2026-07-04-remove-agent-steering-mirror.i18n.yaml
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#	.agents/notes/implemented/simplification/2026-07-04-share-app-bin-boot-glue.i18n.yaml
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#	.agents/notes/implemented/simplification/2026-07-04-tighten-hook-protocol-contract.i18n.yaml
#	.agents/notes/implemented/simplification/2026-07-04-tighten-hook-protocol-contract.zh.md
#	.agents/notes/implemented/simplification/2026-07-04-trim-acp-bridge-unreachable-surface.i18n.yaml
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#	.agents/notes/implemented/simplification/2026-07-12-drop-unconsumed-skill-provider-events.i18n.yaml
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#	.agents/notes/implemented/simplification/2026-07-12-prune-unused-web-seam-fields.i18n.yaml
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#	.agents/notes/implemented/testing/2026-06-11-property-based-testing.i18n.yaml
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#	.agents/notes/implemented/testing/2026-06-19-acp-snapshot-tests.i18n.yaml
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#	.agents/notes/implemented/testing/2026-06-19-real-api-e2e-ci.i18n.yaml
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#	.agents/notes/implemented/testing/2026-06-20-remove-redundant-snapshot-log-goldens.i18n.yaml
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#	.agents/notes/implemented/testing/2026-06-22-fork-child-replay-seed-boundary.i18n.yaml
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#	.agents/notes/implemented/testing/2026-06-22-fork-snapshot-scenarios.i18n.yaml
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#	.agents/notes/implemented/testing/2026-06-22-subagent-snapshot-replay.i18n.yaml
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#	.agents/notes/implemented/testing/2026-07-04-hook-snapshot-matrix.i18n.yaml
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#	.agents/notes/implemented/testing/2026-07-04-single-source-acp-replay-config.i18n.yaml
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#	.agents/notes/implemented/testing/2026-07-06-pin-request-header-content-in-one-scenario.i18n.yaml
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# RFC: 在 bash seam 上支持 stdin 与额外 env
Status: implemented
[English](2026-06-30-bash-stdin-env-trusted-plugin-surface.md) | 中文
## 问题
钩子子系统以 Claude Code 和 Codex 的方式运行外部钩子命令:钩子是一条 shell 命令,通过 **stdin 上的 JSON** 接收事件载荷,并从若干**环境变量**(`CLAUDE_PROJECT_DIR`、`CLAUDE_PLUGIN_ROOT`、`PLUGIN_ROOT`……)读取上下文。harness 已经在 `ctx.bash` 能力 seam 后面有一个完善的命令执行器([dsh-bash](../../../../packages/bash/bash) → [dsh-bash-local](../../../../packages/bash/bash-local)),具备进程组终止、输出截断/溢出处理和凭证擦除功能。复用它来执行钩子意味着钩子桥接层无需重新实现子进程管道——但该 seam 此前无法写入 stdin 或设置额外 env。本 RFC 添加这两个输入。
`stdin` 和 `env` 不构成新的模型能力,因为普通 shell 语法已经能提供两者。环境凭证由 `dsh-bash-local` 的子环境擦除机制保护,而非靠隐藏这些 seam 字段;模型工具参数是静态 JSON,不会展开 shell 变量。因此这些字段服务于受信的进程内调用方(如钩子桥接层),它们需要传递结构化输入和 `CLAUDE_*` 变量,而不必将其嵌入模型可见的 shell 文本。环境变量规则见 [defensive-patterns.md](../../../defensive-patterns.md)。
## 决策
在 `BashExecRequest`(模型/插件侧请求)和 `BashExecSpec`(`run`/`start` 所作用的已解析 spec)上**同时**添加 `stdin?: string` 与 `env?: Record<string, string>`,并在 `dsh-bash-local` 中贯穿它们:`resolve()` 原样传递,`run()`/`start()` 将其传给 `runBash`,后者把字节写入子进程的 stdin 并合并额外 env。
三个有意为之的选择:
1. **模型侧工具不暴露 `stdin` 和 `env`。** Shell 语法已覆盖这些需求,重复参数只会增加接口面而不带来权限隔离。工具仅从声明的模型参数、signal 和 owner 构建请求;受信的进程内调用方可以直接设置 seam 字段。
2. **`env` 在凭证擦除之后合并,因此调用方显式设置的条目总是胜出**——即使键名与凭证同形。这是正确的,因为擦除的职责很窄:阻止 harness 的*环境* `process.env` 凭证泄漏到被 spawn 的命令中。调用方显式设置一个变量时,它命名的是自己已持有的值(而非环境中的秘密),因此擦除不构成对它的约束。`childEnv(extra?)` 按 `scrub(process.env)` → `ENV_OVERRIDES`(对模型友好的 `TERM=dumb` 等)→ `extra` 的顺序分层,后者优先。
3. **`stdin`/`env` 在已解析 spec 上是 required-absent-OK(普通 optional),而非像 `owner` 那样 required-but-nullable。** `owner` 之所以是 required-but-nullable,是因为*静默*缺失的 owner 会产生一个无主、跨会话可读的任务——一个安全隐患,显式的 `undefined` 可以防范。`stdin`/`env` 没有这种风险:缺失意味着「无 stdin / 无额外 env」,这是安全的常规情况(所有模型驱动的调用都如此)。因此它们保持普通 optional,与 `signal` 一致。
`dsh-bash-local` 仅在有字节需要写入时才创建 stdin 管道;否则 fd 0 仍为 `/dev/null`,保持先前行为。它写入字节后关闭管道。子进程未读取即退出时产生的 `EPIPE` 被忽略,因为命令退出码和输出决定结果。
## 曾考虑的替代方案
**可配置的环境秘密擦除。** 否决,属于推测性需求。受信调用方可以在擦除之后显式提供所需值,无需削弱默认的环境保护。
## 后果
钩子桥接层通过既有的 bash seam 传递 JSON 载荷和钩子特定变量,保留其进程组终止、截断和溢出行为。模型接口面不变,bash 工具仍是模型调用请求构建的唯一所有者。相关词汇定义见 [bash 数据结构参考](../../../core-data-structures/bash.md)。