# Conflicts: # .agents/notes/implemented/architecture/2026-07-25-web-client-session-scope-and-provide-channel.i18n.yaml # docs/architecture.i18n.yaml # docs/architecture.md # docs/architecture.zh.md # docs/cookbook/extension-cookbook.i18n.yaml # docs/cookbook/extension-cookbook.md # docs/cookbook/extension-cookbook.zh.md # docs/core-data-structures/llm-streaming.i18n.yaml # docs/core-data-structures/session.i18n.yaml # docs/defensive-patterns.i18n.yaml # packages/acp/acp/README.i18n.yaml # packages/client/runtime/README.i18n.yaml # packages/client/ui-conversation/README.i18n.yaml # packages/client/ui-goal/README.i18n.yaml # packages/compact/compact-basic/README.i18n.yaml # packages/context/README.i18n.yaml # packages/context/README.md # packages/context/README.zh.md # packages/context/session-reference/README.i18n.yaml # packages/context/session-reference/README.md # packages/context/session-reference/README.zh.md # packages/context/tmux-context/README.i18n.yaml # packages/core/session/README.i18n.yaml # packages/core/session/README.md # packages/core/session/README.zh.md # packages/goal/command-goal/README.i18n.yaml # packages/goal/goal-session/README.i18n.yaml # packages/goal/goal-session/README.zh.md # packages/guard/README.i18n.yaml # packages/guard/README.md # packages/guard/README.zh.md # packages/guard/repeat-tool-guard/README.i18n.yaml # packages/host/apiproxy/README.i18n.yaml # packages/host/apiproxy/README.md # packages/host/apiproxy/README.zh.md # packages/plan/plan-mode/README.i18n.yaml # packages/sdk/sdk-client/README.i18n.yaml # packages/sdk/sdk-client/README.md # packages/sdk/sdk-client/README.zh.md # packages/session-persistence/session-persistence/README.i18n.yaml # packages/subagent/subagent-dsh-sdk/README.i18n.yaml # python/sdk/README.i18n.yaml
fs/ - filesystem capability family
English | 中文
The filesystem capability family: provider seam, interchangeable backends, policy, and model-facing tools. All product packages.
| Package | Role | ctx key |
|---|---|---|
fs/ |
Filesystem provider seam and policy-event vocabulary | ctx.fs |
fs-local/ |
Local-filesystem backend | registers ctx.fs |
fs-sandbox/ |
Sandbox-enforcing backend | registers ctx.fs |
fs-policy/ |
Observed-state and mutation policy | fs/* listeners |
tool-fs/ |
Model-facing file tools | registers on ctx.tools |
tool-fs-search/ |
Process-backed discovery tools | registers on ctx.tools |
tool-str-replace-editor/ |
Model-facing string-replacement editor | registers on ctx.tools |
Backends replace one another behind ctx.fs; policy and tools consume the seam independently. Discovery remains process-backed instead of expanding the provider contract. Child READMEs own containment, mutation, schema, and timeout details.