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Based on work from Vincent K - https://github.com/openai/codex/pull/19060 <img width="1836" height="642" alt="CleanShot 2026-04-29 at 20 47 40@2x" src="https://github.com/user-attachments/assets/b647bb89-65fe-40c8-80b0-7a6b7c984634" /> ## Why Compaction rewrites the conversation context that future model turns receive, but hooks currently have no deterministic lifecycle point around that rewrite. This adds compact lifecycle hooks so users can audit manual and automatic compaction, surface hook messages in the UI, and run post-compaction follow-up without overloading tool or prompt hooks. ## What Changed - Added `PreCompact` and `PostCompact` hook events across hook config, discovery, dispatch, generated schemas, app-server notifications, analytics, and TUI hook rendering. - Added trigger matching for compact hooks with the documented `manual` and `auto` matcher values. - Wired `PreCompact` before both local and remote compaction, and `PostCompact` after successful local or remote compaction. - Kept compact hook command input to lifecycle metadata: session id, Codex turn id, transcript path, cwd, hook event name, model, and trigger. - Made compact stdout handling consistent with other hooks: plain stdout is ignored as debug output, while malformed JSON-looking stdout is reported as failed hook output. - Added integration coverage for compact hook dispatch, trigger matching, post-compact execution, and the audited behavior that `decision:"block"` does not block compaction. ## Out of Scope - Hook-specific compaction blocking is not implemented; `decision:"block"` and exit-code-2 blocking semantics are intentionally unsupported for `PreCompact`. - Custom compaction instructions are not exposed to compact hooks in this PR. - Compact summaries, summary character counts, and summary previews are not exposed to compact hooks in this PR. ## Verification - `cargo test -p codex-hooks` - `cargo test -p codex-core manual_pre_compact_block_decision_does_not_block_compaction` - `cargo test -p codex-app-server hooks_list` - `cargo test -p codex-core config_schema_matches_fixture` - `cargo test -p codex-tui hooks_browser` ## Docs The developer documentation for Codex hooks should be updated alongside this feature to document `PreCompact` and `PostCompact`, the `manual`/`auto` matcher values, and the compact hook payload fields. --------- Co-authored-by: Vincent Koc <vincentkoc@ieee.org>
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443 lines
10 KiB
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"definitions": {
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"ApprovalsReviewer": {
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"description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `auto_review` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request. The legacy value `guardian_subagent` is accepted for compatibility.",
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"enum": [
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"user",
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"auto_review",
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"guardian_subagent"
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],
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"type": "string"
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},
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"AskForApproval": {
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"oneOf": [
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{
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"enum": [
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"untrusted",
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"on-failure",
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"on-request",
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"never"
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],
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"type": "string"
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},
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{
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"additionalProperties": false,
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"properties": {
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"granular": {
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"properties": {
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"mcp_elicitations": {
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"type": "boolean"
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},
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"request_permissions": {
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"default": false,
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"type": "boolean"
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},
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"rules": {
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"type": "boolean"
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},
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"sandbox_approval": {
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"type": "boolean"
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},
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"skill_approval": {
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"default": false,
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"type": "boolean"
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}
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},
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"required": [
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"mcp_elicitations",
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"rules",
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"sandbox_approval"
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],
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"type": "object"
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}
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},
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"required": [
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"granular"
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],
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"title": "GranularAskForApproval",
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"type": "object"
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}
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]
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},
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"ConfigRequirements": {
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"properties": {
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"allowedApprovalPolicies": {
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"items": {
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"$ref": "#/definitions/AskForApproval"
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},
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"type": [
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"array",
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"null"
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]
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},
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"allowedSandboxModes": {
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"items": {
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"$ref": "#/definitions/SandboxMode"
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},
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"type": [
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"array",
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"null"
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]
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},
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"allowedWebSearchModes": {
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"items": {
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"$ref": "#/definitions/WebSearchMode"
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},
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"type": [
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"array",
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"null"
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]
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},
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"enforceResidency": {
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"anyOf": [
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{
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"$ref": "#/definitions/ResidencyRequirement"
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},
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{
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"type": "null"
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}
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]
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},
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"featureRequirements": {
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"additionalProperties": {
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"type": "boolean"
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},
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"type": [
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"object",
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"null"
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]
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}
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},
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"type": "object"
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},
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"ConfiguredHookHandler": {
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"oneOf": [
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{
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"properties": {
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"async": {
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"type": "boolean"
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},
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"command": {
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"type": "string"
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},
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"statusMessage": {
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"type": [
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"string",
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"null"
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]
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},
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"timeoutSec": {
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"format": "uint64",
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"minimum": 0.0,
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"type": [
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"integer",
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"null"
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]
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},
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"type": {
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"enum": [
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"command"
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],
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"title": "CommandConfiguredHookHandlerType",
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"type": "string"
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}
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},
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"required": [
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"async",
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"command",
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"type"
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],
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"title": "CommandConfiguredHookHandler",
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"type": "object"
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},
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{
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"properties": {
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"type": {
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"enum": [
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"prompt"
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],
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"title": "PromptConfiguredHookHandlerType",
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"type": "string"
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}
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},
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"required": [
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"type"
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],
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"title": "PromptConfiguredHookHandler",
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"type": "object"
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},
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{
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"properties": {
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"type": {
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"enum": [
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"agent"
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],
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"title": "AgentConfiguredHookHandlerType",
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"type": "string"
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}
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},
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"required": [
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"type"
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],
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"title": "AgentConfiguredHookHandler",
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"type": "object"
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}
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]
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},
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"ConfiguredHookMatcherGroup": {
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"properties": {
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"hooks": {
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"items": {
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"$ref": "#/definitions/ConfiguredHookHandler"
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},
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"type": "array"
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},
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"matcher": {
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"type": [
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"string",
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"null"
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]
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}
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},
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"required": [
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"hooks"
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],
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"type": "object"
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},
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"ManagedHooksRequirements": {
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"properties": {
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"PermissionRequest": {
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"items": {
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"$ref": "#/definitions/ConfiguredHookMatcherGroup"
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},
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"type": "array"
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},
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"PostCompact": {
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"items": {
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"$ref": "#/definitions/ConfiguredHookMatcherGroup"
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},
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"type": "array"
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},
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"PostToolUse": {
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"items": {
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"$ref": "#/definitions/ConfiguredHookMatcherGroup"
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},
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"type": "array"
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},
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"PreCompact": {
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"items": {
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"$ref": "#/definitions/ConfiguredHookMatcherGroup"
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},
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"type": "array"
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},
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"PreToolUse": {
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"items": {
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"$ref": "#/definitions/ConfiguredHookMatcherGroup"
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},
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"type": "array"
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},
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"SessionStart": {
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"items": {
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"$ref": "#/definitions/ConfiguredHookMatcherGroup"
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},
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"type": "array"
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},
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"Stop": {
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"items": {
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"$ref": "#/definitions/ConfiguredHookMatcherGroup"
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},
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"type": "array"
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},
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"UserPromptSubmit": {
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"items": {
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"$ref": "#/definitions/ConfiguredHookMatcherGroup"
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},
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"type": "array"
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},
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"managedDir": {
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"type": [
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"string",
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"null"
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]
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},
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"windowsManagedDir": {
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"type": [
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"string",
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"null"
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]
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}
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},
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"required": [
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"PermissionRequest",
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"PostCompact",
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"PostToolUse",
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"PreCompact",
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"PreToolUse",
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"SessionStart",
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"Stop",
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"UserPromptSubmit"
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],
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"type": "object"
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},
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"NetworkDomainPermission": {
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"enum": [
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"allow",
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"deny"
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],
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"type": "string"
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},
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"NetworkRequirements": {
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"properties": {
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"allowLocalBinding": {
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"type": [
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"boolean",
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"null"
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]
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},
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"allowUnixSockets": {
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"description": "Legacy compatibility view derived from `unix_sockets`.",
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"items": {
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"type": "string"
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},
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"type": [
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"array",
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"null"
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]
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},
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"allowUpstreamProxy": {
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"type": [
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"boolean",
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"null"
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]
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},
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"allowedDomains": {
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"description": "Legacy compatibility view derived from `domains`.",
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"items": {
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"type": "string"
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},
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"type": [
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"array",
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"null"
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]
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},
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"dangerouslyAllowAllUnixSockets": {
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"type": [
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"boolean",
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"null"
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]
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},
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"dangerouslyAllowNonLoopbackProxy": {
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"type": [
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"boolean",
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"null"
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]
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},
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"deniedDomains": {
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"description": "Legacy compatibility view derived from `domains`.",
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"items": {
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"type": "string"
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},
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"type": [
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"array",
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"null"
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]
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},
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"domains": {
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"additionalProperties": {
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"$ref": "#/definitions/NetworkDomainPermission"
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},
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"description": "Canonical network permission map for `experimental_network`.",
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"type": [
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"object",
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"null"
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]
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},
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"enabled": {
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"type": [
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"boolean",
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"null"
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]
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},
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"httpPort": {
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"format": "uint16",
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"minimum": 0.0,
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"type": [
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"integer",
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"null"
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]
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},
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"managedAllowedDomainsOnly": {
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"description": "When true, only managed allowlist entries are respected while managed network enforcement is active.",
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"type": [
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"boolean",
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"null"
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]
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},
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"socksPort": {
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"format": "uint16",
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"minimum": 0.0,
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"type": [
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"integer",
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"null"
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]
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},
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"unixSockets": {
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"additionalProperties": {
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"$ref": "#/definitions/NetworkUnixSocketPermission"
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},
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"description": "Canonical unix socket permission map for `experimental_network`.",
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"type": [
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"object",
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"null"
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]
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}
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},
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"type": "object"
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},
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"NetworkUnixSocketPermission": {
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"enum": [
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"allow",
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"none"
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],
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"type": "string"
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},
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"ResidencyRequirement": {
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"enum": [
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"us"
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],
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"type": "string"
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},
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"SandboxMode": {
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"enum": [
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"read-only",
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"workspace-write",
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"danger-full-access"
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],
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"type": "string"
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},
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"WebSearchMode": {
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"enum": [
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"disabled",
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"cached",
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"live"
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],
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"type": "string"
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}
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},
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"properties": {
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"requirements": {
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"anyOf": [
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{
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"$ref": "#/definitions/ConfigRequirements"
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},
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{
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"type": "null"
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}
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],
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"description": "Null if no requirements are configured (e.g. no requirements.toml/MDM entries)."
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}
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},
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"title": "ConfigRequirementsReadResponse",
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"type": "object"
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} |