Files
codex/codex-rs/app-server-protocol/schema/json/v1/ResumeConversationParams.json
Michael Bolin 425fff7ad6 feat: add Reject approval policy with granular prompt rejection controls (#12087)
## Why

We need a way to auto-reject specific approval prompt categories without
switching all approvals off.

The goal is to let users independently control:
- sandbox escalation approvals,
- execpolicy `prompt` rule approvals,
- MCP elicitation prompts.

## What changed

- Added a new primary approval mode in `protocol/src/protocol.rs`:

```rust
pub enum AskForApproval {
    // ...
    Reject(RejectConfig),
    // ...
}

pub struct RejectConfig {
    pub sandbox_approval: bool,
    pub rules: bool,
    pub mcp_elicitations: bool,
}
```

- Wired `RejectConfig` semantics through approval paths in `core`:
  - `core/src/exec_policy.rs`
    - rejects rule-driven prompts when `rules = true`
    - rejects sandbox/escalation prompts when `sandbox_approval = true`
- preserves rule priority when both rule and sandbox prompt conditions
are present
  - `core/src/tools/sandboxing.rs`
- applies `sandbox_approval` to default exec approval decisions and
sandbox-failure retry gating
  - `core/src/safety.rs`
- keeps `Reject { all false }` behavior aligned with `OnRequest` for
patch safety
    - rejects out-of-root patch approvals when `sandbox_approval = true`
  - `core/src/mcp_connection_manager.rs`
    - auto-declines MCP elicitations when `mcp_elicitations = true`

- Ensured approval policy used by MCP elicitation flow stays in sync
with constrained session policy updates.

- Updated app-server v2 conversions and generated schema/TypeScript
artifacts for the new `Reject` shape.

## Verification

Added focused unit coverage for the new behavior in:
- `core/src/exec_policy.rs`
- `core/src/tools/sandboxing.rs`
- `core/src/mcp_connection_manager.rs`
- `core/src/safety.rs`
- `core/src/tools/runtimes/apply_patch.rs`

Key cases covered include rule-vs-sandbox prompt precedence, MCP
auto-decline behavior, and patch/sandbox retry behavior under
`RejectConfig`.
2026-02-19 11:41:49 -08:00

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{
"$schema": "http://json-schema.org/draft-07/schema#",
"definitions": {
"AskForApproval": {
"description": "Determines the conditions under which the user is consulted to approve running the command proposed by Codex.",
"oneOf": [
{
"description": "Under this policy, only \"known safe\" commands—as determined by `is_safe_command()`—that **only read files** are autoapproved. Everything else will ask the user to approve.",
"enum": [
"untrusted"
],
"type": "string"
},
{
"description": "DEPRECATED: *All* commands are autoapproved, but they are expected to run inside a sandbox where network access is disabled and writes are confined to a specific set of paths. If the command fails, it will be escalated to the user to approve execution without a sandbox. Prefer `OnRequest` for interactive runs or `Never` for non-interactive runs.",
"enum": [
"on-failure"
],
"type": "string"
},
{
"description": "The model decides when to ask the user for approval.",
"enum": [
"on-request"
],
"type": "string"
},
{
"additionalProperties": false,
"description": "Fine-grained rejection controls for approval prompts.\n\nWhen a field is `true`, prompts of that category are automatically rejected instead of shown to the user.",
"properties": {
"reject": {
"$ref": "#/definitions/RejectConfig"
}
},
"required": [
"reject"
],
"title": "RejectAskForApproval",
"type": "object"
},
{
"description": "Never ask the user to approve commands. Failures are immediately returned to the model, and never escalated to the user for approval.",
"enum": [
"never"
],
"type": "string"
}
]
},
"ContentItem": {
"oneOf": [
{
"properties": {
"text": {
"type": "string"
},
"type": {
"enum": [
"input_text"
],
"title": "InputTextContentItemType",
"type": "string"
}
},
"required": [
"text",
"type"
],
"title": "InputTextContentItem",
"type": "object"
},
{
"properties": {
"image_url": {
"type": "string"
},
"type": {
"enum": [
"input_image"
],
"title": "InputImageContentItemType",
"type": "string"
}
},
"required": [
"image_url",
"type"
],
"title": "InputImageContentItem",
"type": "object"
},
{
"properties": {
"text": {
"type": "string"
},
"type": {
"enum": [
"output_text"
],
"title": "OutputTextContentItemType",
"type": "string"
}
},
"required": [
"text",
"type"
],
"title": "OutputTextContentItem",
"type": "object"
}
]
},
"FunctionCallOutputBody": {
"anyOf": [
{
"type": "string"
},
{
"items": {
"$ref": "#/definitions/FunctionCallOutputContentItem"
},
"type": "array"
}
]
},
"FunctionCallOutputContentItem": {
"description": "Responses API compatible content items that can be returned by a tool call. This is a subset of ContentItem with the types we support as function call outputs.",
"oneOf": [
{
"properties": {
"text": {
"type": "string"
},
"type": {
"enum": [
"input_text"
],
"title": "InputTextFunctionCallOutputContentItemType",
"type": "string"
}
},
"required": [
"text",
"type"
],
"title": "InputTextFunctionCallOutputContentItem",
"type": "object"
},
{
"properties": {
"image_url": {
"type": "string"
},
"type": {
"enum": [
"input_image"
],
"title": "InputImageFunctionCallOutputContentItemType",
"type": "string"
}
},
"required": [
"image_url",
"type"
],
"title": "InputImageFunctionCallOutputContentItem",
"type": "object"
}
]
},
"FunctionCallOutputPayload": {
"description": "The payload we send back to OpenAI when reporting a tool call result.\n\n`body` serializes directly as the wire value for `function_call_output.output`. `success` remains internal metadata for downstream handling.",
"properties": {
"body": {
"$ref": "#/definitions/FunctionCallOutputBody"
},
"success": {
"type": [
"boolean",
"null"
]
}
},
"required": [
"body"
],
"type": "object"
},
"GhostCommit": {
"description": "Details of a ghost commit created from a repository state.",
"properties": {
"id": {
"type": "string"
},
"parent": {
"type": [
"string",
"null"
]
},
"preexisting_untracked_dirs": {
"items": {
"type": "string"
},
"type": "array"
},
"preexisting_untracked_files": {
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"id",
"preexisting_untracked_dirs",
"preexisting_untracked_files"
],
"type": "object"
},
"LocalShellAction": {
"oneOf": [
{
"properties": {
"command": {
"items": {
"type": "string"
},
"type": "array"
},
"env": {
"additionalProperties": {
"type": "string"
},
"type": [
"object",
"null"
]
},
"timeout_ms": {
"format": "uint64",
"minimum": 0.0,
"type": [
"integer",
"null"
]
},
"type": {
"enum": [
"exec"
],
"title": "ExecLocalShellActionType",
"type": "string"
},
"user": {
"type": [
"string",
"null"
]
},
"working_directory": {
"type": [
"string",
"null"
]
}
},
"required": [
"command",
"type"
],
"title": "ExecLocalShellAction",
"type": "object"
}
]
},
"LocalShellStatus": {
"enum": [
"completed",
"in_progress",
"incomplete"
],
"type": "string"
},
"MessagePhase": {
"description": "Classifies an assistant message as interim commentary or final answer text.\n\nProviders do not emit this consistently, so callers must treat `None` as \"phase unknown\" and keep compatibility behavior for legacy models.",
"oneOf": [
{
"description": "Mid-turn assistant text (for example preamble/progress narration).\n\nAdditional tool calls or assistant output may follow before turn completion.",
"enum": [
"commentary"
],
"type": "string"
},
{
"description": "The assistant's terminal answer text for the current turn.",
"enum": [
"final_answer"
],
"type": "string"
}
]
},
"NewConversationParams": {
"properties": {
"approvalPolicy": {
"anyOf": [
{
"$ref": "#/definitions/AskForApproval"
},
{
"type": "null"
}
]
},
"baseInstructions": {
"type": [
"string",
"null"
]
},
"compactPrompt": {
"type": [
"string",
"null"
]
},
"config": {
"additionalProperties": true,
"type": [
"object",
"null"
]
},
"cwd": {
"type": [
"string",
"null"
]
},
"developerInstructions": {
"type": [
"string",
"null"
]
},
"includeApplyPatchTool": {
"type": [
"boolean",
"null"
]
},
"model": {
"type": [
"string",
"null"
]
},
"modelProvider": {
"type": [
"string",
"null"
]
},
"profile": {
"type": [
"string",
"null"
]
},
"sandbox": {
"anyOf": [
{
"$ref": "#/definitions/SandboxMode"
},
{
"type": "null"
}
]
}
},
"type": "object"
},
"ReasoningItemContent": {
"oneOf": [
{
"properties": {
"text": {
"type": "string"
},
"type": {
"enum": [
"reasoning_text"
],
"title": "ReasoningTextReasoningItemContentType",
"type": "string"
}
},
"required": [
"text",
"type"
],
"title": "ReasoningTextReasoningItemContent",
"type": "object"
},
{
"properties": {
"text": {
"type": "string"
},
"type": {
"enum": [
"text"
],
"title": "TextReasoningItemContentType",
"type": "string"
}
},
"required": [
"text",
"type"
],
"title": "TextReasoningItemContent",
"type": "object"
}
]
},
"ReasoningItemReasoningSummary": {
"oneOf": [
{
"properties": {
"text": {
"type": "string"
},
"type": {
"enum": [
"summary_text"
],
"title": "SummaryTextReasoningItemReasoningSummaryType",
"type": "string"
}
},
"required": [
"text",
"type"
],
"title": "SummaryTextReasoningItemReasoningSummary",
"type": "object"
}
]
},
"RejectConfig": {
"properties": {
"mcp_elicitations": {
"description": "Reject MCP elicitation prompts.",
"type": "boolean"
},
"rules": {
"description": "Reject prompts triggered by execpolicy `prompt` rules.",
"type": "boolean"
},
"sandbox_approval": {
"description": "Reject approval prompts related to sandbox escalation.",
"type": "boolean"
}
},
"required": [
"mcp_elicitations",
"rules",
"sandbox_approval"
],
"type": "object"
},
"ResponseItem": {
"oneOf": [
{
"properties": {
"content": {
"items": {
"$ref": "#/definitions/ContentItem"
},
"type": "array"
},
"end_turn": {
"type": [
"boolean",
"null"
]
},
"id": {
"type": [
"string",
"null"
],
"writeOnly": true
},
"phase": {
"anyOf": [
{
"$ref": "#/definitions/MessagePhase"
},
{
"type": "null"
}
]
},
"role": {
"type": "string"
},
"type": {
"enum": [
"message"
],
"title": "MessageResponseItemType",
"type": "string"
}
},
"required": [
"content",
"role",
"type"
],
"title": "MessageResponseItem",
"type": "object"
},
{
"properties": {
"content": {
"default": null,
"items": {
"$ref": "#/definitions/ReasoningItemContent"
},
"type": [
"array",
"null"
]
},
"encrypted_content": {
"type": [
"string",
"null"
]
},
"id": {
"type": "string",
"writeOnly": true
},
"summary": {
"items": {
"$ref": "#/definitions/ReasoningItemReasoningSummary"
},
"type": "array"
},
"type": {
"enum": [
"reasoning"
],
"title": "ReasoningResponseItemType",
"type": "string"
}
},
"required": [
"id",
"summary",
"type"
],
"title": "ReasoningResponseItem",
"type": "object"
},
{
"properties": {
"action": {
"$ref": "#/definitions/LocalShellAction"
},
"call_id": {
"description": "Set when using the Responses API.",
"type": [
"string",
"null"
]
},
"id": {
"description": "Legacy id field retained for compatibility with older payloads.",
"type": [
"string",
"null"
],
"writeOnly": true
},
"status": {
"$ref": "#/definitions/LocalShellStatus"
},
"type": {
"enum": [
"local_shell_call"
],
"title": "LocalShellCallResponseItemType",
"type": "string"
}
},
"required": [
"action",
"status",
"type"
],
"title": "LocalShellCallResponseItem",
"type": "object"
},
{
"properties": {
"arguments": {
"type": "string"
},
"call_id": {
"type": "string"
},
"id": {
"type": [
"string",
"null"
],
"writeOnly": true
},
"name": {
"type": "string"
},
"type": {
"enum": [
"function_call"
],
"title": "FunctionCallResponseItemType",
"type": "string"
}
},
"required": [
"arguments",
"call_id",
"name",
"type"
],
"title": "FunctionCallResponseItem",
"type": "object"
},
{
"properties": {
"call_id": {
"type": "string"
},
"output": {
"$ref": "#/definitions/FunctionCallOutputPayload"
},
"type": {
"enum": [
"function_call_output"
],
"title": "FunctionCallOutputResponseItemType",
"type": "string"
}
},
"required": [
"call_id",
"output",
"type"
],
"title": "FunctionCallOutputResponseItem",
"type": "object"
},
{
"properties": {
"call_id": {
"type": "string"
},
"id": {
"type": [
"string",
"null"
],
"writeOnly": true
},
"input": {
"type": "string"
},
"name": {
"type": "string"
},
"status": {
"type": [
"string",
"null"
]
},
"type": {
"enum": [
"custom_tool_call"
],
"title": "CustomToolCallResponseItemType",
"type": "string"
}
},
"required": [
"call_id",
"input",
"name",
"type"
],
"title": "CustomToolCallResponseItem",
"type": "object"
},
{
"properties": {
"call_id": {
"type": "string"
},
"output": {
"type": "string"
},
"type": {
"enum": [
"custom_tool_call_output"
],
"title": "CustomToolCallOutputResponseItemType",
"type": "string"
}
},
"required": [
"call_id",
"output",
"type"
],
"title": "CustomToolCallOutputResponseItem",
"type": "object"
},
{
"properties": {
"action": {
"anyOf": [
{
"$ref": "#/definitions/WebSearchAction"
},
{
"type": "null"
}
]
},
"id": {
"type": [
"string",
"null"
],
"writeOnly": true
},
"status": {
"type": [
"string",
"null"
]
},
"type": {
"enum": [
"web_search_call"
],
"title": "WebSearchCallResponseItemType",
"type": "string"
}
},
"required": [
"type"
],
"title": "WebSearchCallResponseItem",
"type": "object"
},
{
"properties": {
"ghost_commit": {
"$ref": "#/definitions/GhostCommit"
},
"type": {
"enum": [
"ghost_snapshot"
],
"title": "GhostSnapshotResponseItemType",
"type": "string"
}
},
"required": [
"ghost_commit",
"type"
],
"title": "GhostSnapshotResponseItem",
"type": "object"
},
{
"properties": {
"encrypted_content": {
"type": "string"
},
"type": {
"enum": [
"compaction"
],
"title": "CompactionResponseItemType",
"type": "string"
}
},
"required": [
"encrypted_content",
"type"
],
"title": "CompactionResponseItem",
"type": "object"
},
{
"properties": {
"type": {
"enum": [
"other"
],
"title": "OtherResponseItemType",
"type": "string"
}
},
"required": [
"type"
],
"title": "OtherResponseItem",
"type": "object"
}
]
},
"SandboxMode": {
"enum": [
"read-only",
"workspace-write",
"danger-full-access"
],
"type": "string"
},
"ThreadId": {
"type": "string"
},
"WebSearchAction": {
"oneOf": [
{
"properties": {
"queries": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"query": {
"type": [
"string",
"null"
]
},
"type": {
"enum": [
"search"
],
"title": "SearchWebSearchActionType",
"type": "string"
}
},
"required": [
"type"
],
"title": "SearchWebSearchAction",
"type": "object"
},
{
"properties": {
"type": {
"enum": [
"open_page"
],
"title": "OpenPageWebSearchActionType",
"type": "string"
},
"url": {
"type": [
"string",
"null"
]
}
},
"required": [
"type"
],
"title": "OpenPageWebSearchAction",
"type": "object"
},
{
"properties": {
"pattern": {
"type": [
"string",
"null"
]
},
"type": {
"enum": [
"find_in_page"
],
"title": "FindInPageWebSearchActionType",
"type": "string"
},
"url": {
"type": [
"string",
"null"
]
}
},
"required": [
"type"
],
"title": "FindInPageWebSearchAction",
"type": "object"
},
{
"properties": {
"type": {
"enum": [
"other"
],
"title": "OtherWebSearchActionType",
"type": "string"
}
},
"required": [
"type"
],
"title": "OtherWebSearchAction",
"type": "object"
}
]
}
},
"properties": {
"conversationId": {
"anyOf": [
{
"$ref": "#/definitions/ThreadId"
},
{
"type": "null"
}
]
},
"history": {
"items": {
"$ref": "#/definitions/ResponseItem"
},
"type": [
"array",
"null"
]
},
"overrides": {
"anyOf": [
{
"$ref": "#/definitions/NewConversationParams"
},
{
"type": "null"
}
]
},
"path": {
"type": [
"string",
"null"
]
}
},
"title": "ResumeConversationParams",
"type": "object"
}