Commit Graph

3157 Commits

  • Route ThreadManager rollout path reads through thread store (#21265)
    - Route ThreadManager rollout-path resume/fork through ThreadStore
    history reads.
    - Add in-memory store coverage proving path-addressed reads are used.
    
    This isn't strictly necessary for the ThreadStore migration, since these
    ThreadManager methods _only_ work for path-based lookups, but I'm trying
    to migrate all the rollout recorder callsites to use the threadstore
    were possible for consistency.
  • Move thread name edits to ThreadStore (#21264)
    - Route live thread renames through `ThreadStore` metadata updates.
    - Read resumed thread names from store metadata with legacy local
    fallback preserved in the store.
  • [codex] Move tool specs onto handlers (#21461)
    ## Why
    
    This is the next stacked step after deleting the tool-handler kind
    indirection. Specs should come from the registered handlers themselves
    so registry construction has a single source of truth for handler
    behavior and exposed tool definitions.
    
    ## What changed
    
    - Added `ToolHandler::spec()` plus handler-provided parallel/code-mode
    metadata, and made `ToolRegistryBuilder::register_handler` automatically
    collect specs from registered handlers.
    - Moved builtin tool spec construction into the corresponding handlers
    and their adjacent `_spec` modules, including shell, unified exec, apply
    patch, view image, request plugin install, tool search, MCP resource,
    goals, planning, permissions, agent jobs, and multi-agent tools.
    - Reworked configurable handlers to receive their tool-building options
    through constructors, with non-optional handler options where the
    handler is always spec-backed. Shell fallback handlers keep an explicit
    no-spec mode because they are also registered as hidden dispatch
    aliases.
    - Kept `CodeModeExecuteHandler` on the explicit configured wrapper so
    the code-mode exec spec can still be built from the nested registry.
    
    ## Verification
    
    - `cargo check -p codex-core`
    - `cargo test -p codex-core tools::spec_plan::tests`
    - `cargo test -p codex-core tools::spec::tests`
    - `cargo test -p codex-core tools::handlers::multi_agents_spec::tests`
    - `RUST_MIN_STACK=16777216 cargo test -p codex-core
    tools::handlers::multi_agents::tests`
    - `cargo test -p codex-core tools::handlers::apply_patch::tests`
    - `cargo test -p codex-core tools::handlers::unified_exec::tests`
    - `just fix -p codex-core`
    - `git diff --check`
  • app-server: refresh live threads from latest config snapshot (#21187)
    ## Why
    
    App-server config writes were leaving existing threads partially stale.
    After a config mutation, the app-server told each live thread to run
    `Op::ReloadUserConfig`, but that path only re-read the user
    `config.toml` layer. Settings that came from the app-server's
    materialized config snapshot did not propagate to existing threads until
    restart.
    
    This change prevent a FS access from `core` for CCA.
    
    ## What changed
    
    - add `CodexThread::refresh_runtime_config()` and
    `Session::refresh_runtime_config()` so the app-server can push a freshly
    rebuilt config snapshot into a live thread
    - rebuild the latest config with each thread's `cwd` after config
    mutations, then refresh the thread from that snapshot instead of asking
    it to reload only `config.toml`
    - keep session-static settings unchanged during refresh, while updating
    runtime-refreshable state such as the config layer stack,
    `tool_suggest`, and derived hook/plugin/skill state
    - keep `reload_user_config_layer()` as the file-backed fallback for
    legacy local reload flows, but route the shared refresh logic through
    the new runtime refresh path
    
    ## Testing
    
    - add a session test that verifies `refresh_runtime_config()` rebuilds
    hooks from refreshed config
    - add a session test that verifies runtime-refreshable fields update
    while session-static settings like `model` and `notify` stay unchanged
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • [codex] Remove string-keyed MCP tool maps (#21454)
    ## Summary
    
    This PR removes the synthetic `HashMap<String, ToolInfo>` keys from MCP
    tool discovery. `McpConnectionManager::list_all_tools()` now returns
    normalized `Vec<ToolInfo>`, and downstream code derives identity from
    `ToolInfo::canonical_tool_name()`.
    
    The motivation is to keep model-visible tool identity on
    `ToolName`/`ToolInfo` instead of parallel string map keys, so future
    namespace changes do not have to preserve otherwise-unused lookup keys.
    
    ## Changes
    
    - Rename the MCP normalization path from `qualify_tools` to
    `normalize_tools_for_model` and return tool values directly.
    - Flow MCP tool lists through connectors, plugin injection, router/spec
    building, code mode, and tool search as vectors/slices.
    - Keep direct/deferred subtraction local to `mcp_tool_exposure`, using
    `ToolName` values.
    - Update tests to compare `ToolName` instances where MCP identity
    matters.
    
    ## Validation
    
    - `cargo test -p codex-mcp test_normalize_tools`
    - `cargo test -p codex-core mcp_tool_exposure`
    - `cargo test -p codex-core
    direct_mcp_tools_register_namespaced_handlers`
    - `cargo test -p codex-core
    search_tool_registers_namespaced_mcp_tool_aliases`
    - `just fix -p codex-mcp`
    - `just fix -p codex-core`
  • fix: preserve exact turn diffs after partial apply_patch failures (#21518)
    ## Why
    
    Follow-up to #21180: turn diffs are operation-backed now, but a failed
    `apply_patch` can still leave exact filesystem mutations behind. For
    example, a move can write the destination file before failing to remove
    the source. Treating the whole call as unknowable then drops a change
    that Codex actually knows happened, so the emitted turn diff can drift
    from the workspace.
    
    ## What changed
    
    -
    [`apply-patch`](https://github.com/openai/codex/blob/f55724e0276a9b3213170daf2701ccfa0ce22646/codex-rs/apply-patch/src/lib.rs#L248-L345)
    now returns `ApplyPatchFailure` with the exact committed prefix
    accumulated before an error. If a write failure may already have mutated
    the target, the delta is marked inexact instead of being reused blindly.
    - Move handling now records the destination write before attempting
    source removal, so a partially failed move can still report the
    destination file that definitely landed
    ([code](https://github.com/openai/codex/blob/f55724e0276a9b3213170daf2701ccfa0ce22646/codex-rs/apply-patch/src/lib.rs#L463-L521)).
    -
    [`ApplyPatchRuntime`](https://github.com/openai/codex/blob/f55724e0276a9b3213170daf2701ccfa0ce22646/codex-rs/core/src/tools/runtimes/apply_patch.rs#L49-L67)
    now accumulates committed deltas across attempts and forwards them even
    when the visible tool result is failed or sandbox-denied ([runtime
    path](https://github.com/openai/codex/blob/f55724e0276a9b3213170daf2701ccfa0ce22646/codex-rs/core/src/tools/runtimes/apply_patch.rs#L223-L250),
    [event
    path](https://github.com/openai/codex/blob/f55724e0276a9b3213170daf2701ccfa0ce22646/codex-rs/core/src/tools/events.rs#L215-L225)).
    - `TurnDiffTracker` now consumes committed exact deltas rather than only
    fully successful patches; exact-empty failures leave the aggregate
    unchanged, while inexact deltas still invalidate it.
    
    ## Verification
    
    - Added a regression test covering a failed move that still emits the
    committed destination diff:
    [`apply_patch_failed_move_preserves_committed_destination_diff`](https://github.com/openai/codex/blob/f55724e0276a9b3213170daf2701ccfa0ce22646/codex-rs/core/tests/suite/apply_patch_cli.rs#L1517-L1586).
    - Kept explicit coverage that an inexact delta clears the aggregate
    instead of publishing a guessed diff:
    [`apply_patch_clears_aggregated_diff_after_inexact_delta`](https://github.com/openai/codex/blob/f55724e0276a9b3213170daf2701ccfa0ce22646/codex-rs/core/tests/suite/apply_patch_cli.rs#L1589-L1655).
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Make turn diff tracking operation backed (#21180)
    ## Summary
    - replace filesystem-based turn diff tracking with an operation-backed
    accumulator
    - preserve enough verified apply_patch state to render move-overwrite
    cases correctly
    - keep the turn/diff/updated contract intact while removing remote-only
    turn-diff test skips
    
    This takes the assumption that no 3P services rely on the output format
    of `apply_patch`
    
    ## Why
    For the CCA file system isolation push
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • feat: make built-in MCPs first-class runtime servers (#21356)
    ## DISCLAIMER
    This is experimental and no production service must rely on this
    
    ## Why
    
    Built-in MCPs are product-owned runtime capabilities, but they were
    previously flattened into the same config-backed stdio path as
    user-configured servers. That made them depend on a hidden `codex
    builtin-mcp` re-exec path, exposed them through config-oriented CLI
    flows, and erased distinctions the runtime needs to preserve—most
    notably whether an MCP call should count as external context for
    memory-mode pollution.
    
    ## What changed
    
    - Model product-owned built-ins separately from config-backed MCP
    servers via `BuiltinMcpServer` and `EffectiveMcpServer`.
    - Launch built-ins in process through a reusable async transport instead
    of the hidden `builtin-mcp` stdio subcommand.
    - Keep config-oriented CLI operations such as `codex mcp
    list/get/login/logout` scoped to configured servers, while merging
    built-ins only into the effective runtime server set.
    - Retain server metadata after launch so parallel-tool support and
    context classification come from the live server set; built-in
    `memories` is now classified as local Codex state rather than external
    context.
    
    ## Test plan
    
    - `cargo test -p codex-mcp`
    - `cargo test -p codex-core --test suite
    builtin_memories_mcp_call_does_not_mark_thread_memory_mode_polluted_when_configured`
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Revert state DB injection and agent graph store (#21481)
    ## Why
    
    Reverts #20689 to restore the previous optional state DB plumbing. The
    conflict resolution keeps the newer installation ID and session/thread
    identity changes that landed after #20689, while removing the mandatory
    state DB and agent graph store dependency from ThreadManager
    construction.
    
    ## What changed
    
    - Restored `Option<StateDbHandle>` through app-server, MCP server,
    prompt debug, and test entry points.
    - Removed the `codex-core` dependency on `codex-agent-graph-store` and
    reverted descendant lookup back to the existing state DB path when
    available.
    - Kept newer `installation_id` forwarding by passing it beside the
    optional DB handle.
    - Kept local thread-name updates working when the optional state DB
    handle is absent.
    
    ## Validation
    
    - `git diff --check`
    - `cargo test -p codex-thread-store`
    - `cargo test -p codex-state -p codex-rollout -p
    codex-app-server-protocol`
    - Attempted `env CARGO_INCREMENTAL=0 cargo test -p codex-core -p
    codex-app-server -p codex-app-server-client -p codex-mcp-server -p
    codex-thread-manager-sample -p codex-tui`; blocked locally by a rustc
    ICE while compiling `v8 v146.4.0` with `rustc 1.93.0 (254b59607
    2026-01-19)` on `aarch64-apple-darwin`.
  • [codex] Add OpenAI Developers to tool suggest allowlist (#21423)
    ## Summary
    
    Add `openai-developers@openai-curated` to
    `TOOL_SUGGEST_DISCOVERABLE_PLUGIN_ALLOWLIST` so the OpenAI Developers
    plugin can be surfaced through tool suggestions once it is available in
    the Built by OpenAI marketplace.
    
    Update the discoverable plugin test fixture to assert the plugin is
    returned from the curated marketplace allowlist path.
    
    ## Validation
    
    - `cargo fmt --check` passed; rustfmt emitted the existing
    stable-channel warnings about `imports_granularity`.
    - `cargo test -p codex-core
    list_tool_suggest_discoverable_plugins_returns_uninstalled_curated_plugins`
    passed.
  • [codex] Delete tool handler plan indirection (#21427)
    ## Why
    
    The spec split in the parent PR still left an intermediate registry plan
    that recorded `ToolHandlerKind` values and translated them into concrete
    handlers later. That kept tool registration dependent on static enum
    bookkeeping instead of registering handlers from the same code that
    assembles their specs.
    
    ## What Changed
    
    - Make `build_tool_registry_builder` register concrete handlers directly
    while adding specs.
    - Add small `ToolRegistryBuilder` helpers for spec augmentation and
    nested code-mode inspection.
    - Remove `ToolHandlerKind`, `ToolHandlerSpec`, and `ToolRegistryPlan`.
    - Update spec-plan tests to assert against the built `ToolRegistry`
    instead of static handler descriptors.
    
    ## Validation
    
    - `cargo check -p codex-core`
    - `cargo test -p codex-core tools::spec_plan::tests`
    - `cargo test -p codex-core tools::spec::tests`
    - `just fix -p codex-core`
  • Add compact lifecycle hooks (started by vincentkoc - external contrib) (#19905)
    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>
  • [codex] Move tool specs into core handlers (#21416)
    ## Why
    
    This is the first mechanical slice of moving tool spec ownership toward
    the handlers. `codex-tools` should keep shared primitives and conversion
    helpers, while builtin tool specs and registration planning live in
    `codex-core` with the handlers that own those tools.
    
    Keeping this PR to relocation and import updates isolates the copy/move
    review from the later logic change that wires specs through registered
    handlers.
    
    ## What changed
    
    - Moved builtin tool spec constructors from `codex-rs/tools/src` into
    `codex-rs/core/src/tools/handlers/*_spec.rs` or nearby core tool
    modules.
    - Moved the registry planning code into
    `codex-rs/core/src/tools/spec_plan.rs` and its associated types/tests
    into core.
    - Kept shared primitives in `codex-tools`, including `ToolSpec`,
    schema/types, discovery/config primitives, dynamic/MCP conversion
    helpers, and code-mode collection helpers.
    - Updated handlers that referenced moved argument types or tool-name
    constants to use the core spec modules.
    - Moved spec tests next to the moved spec modules.
    
    ## Verification
    
    - `cargo check -p codex-tools`
    - `cargo check -p codex-core`
    - `cargo test -p codex-tools`
    - `cargo test -p codex-core _spec::tests`
    - `cargo test -p codex-core tools::spec_plan::tests`
    - `just fix -p codex-tools`
    - `just fix -p codex-core`
    
    Note: I also tried the broader `cargo test -p codex-core tools::`; it
    reached the moved spec-plan/spec tests successfully, then aborted with a
    stack overflow in
    `tools::handlers::multi_agents::tests::tool_handlers_cascade_close_and_resume_and_keep_explicitly_closed_subtrees_closed`,
    which is outside this spec relocation.
  • Move skills watcher to app-server (#21287)
    ## Why
    
    Skills update notifications are app-server API behavior, but the watcher
    lived in `codex-core` and surfaced through
    `EventMsg::SkillsUpdateAvailable`. Moving the watcher out keeps core
    focused on thread execution and lets app-server own both cache
    invalidation and the `skills/changed` notification.
    
    ## What changed
    
    - Added an app-server-owned skills watcher that watches local skill
    roots, clears the shared skills cache, and emits `skills/changed`
    directly.
    - Registers skill watches from the common app-server thread listener
    attach path, including direct starts, resumes, and app-server-observed
    child or forked threads.
    - Stores the `WatchRegistration` on `ThreadState`, so listener
    replacement, thread teardown, idle unload, and app-server shutdown
    deregister by dropping the RAII guard.
    - Removed `EventMsg::SkillsUpdateAvailable`, the core watcher, and the
    old core live-reload test.
    - Extended the app-server skills change test to verify a cached skills
    list is refreshed after a filesystem change without forcing reload.
    
    ## Validation
    
    - `cargo check -p codex-core -p codex-app-server -p codex-mcp-server -p
    codex-rollout -p codex-rollout-trace`
    - `cargo test -p codex-app-server
    skills_changed_notification_is_emitted_after_skill_change`
  • Document Codex git commit attribution config (#21379)
    ## Summary
    - document that commit attribution for generated git commit messages is
    gated by the `codex_git_commit` feature flag
    - add an example `config.toml` snippet showing `commit_attribution` with
    `[features].codex_git_commit = true`
    - update the config schema description so the reference docs explain
    that `commit_attribution` only takes effect when the feature is enabled
    
    Fixes #19799.
    
    ## Validation
    - `cargo run -p codex-core --bin codex-write-config-schema`
    - `cargo test -p codex-config`
    - `cargo test -p codex-features`
    - `cargo fmt --check`
    - `git diff --check`
    
    ## Notes
    - `cargo test -p codex-core config_schema_matches_fixture` currently
    fails before reaching the schema test because `core_test_support`
    imports `similar` without a linked crate in this checkout. The narrower
    package checks above avoid that unrelated test-support build failure.
  • [codex] Split tool handlers into separate files (#21395)
    ## Why
    
    Several tool handler modules still bundled multiple `ToolHandler`
    implementations in one file. That made the handler directory harder to
    navigate and made otherwise local handler edits land in large shared
    modules.
    
    ## What
    
    - Split grouped tool handlers into one handler file each for agent jobs,
    goals, MCP resources, shell tools, and unified exec.
    - Kept shared parsing, payload, and runtime helpers in the existing
    parent modules, with re-exports preserving the existing handler import
    paths.
    - Updated the shell handler tests to construct `ShellCommandHandler`
    through the existing `ShellCommandBackendConfig` conversion now that the
    backend detail lives with the shell-command handler.
    
    ## Validation
    
    - `cargo check -p codex-core`
    - `cargo clippy -p codex-core --lib -- -D warnings`
    - `git diff --check -- codex-rs/core/src/tools/handlers`
    
    Targeted `codex-core` handler tests did not run locally because
    `core_test_support` currently fails to compile before reaching these
    tests due to an unresolved `similar` import.
  • Avoid hard-coded environment context shell (#21390)
    ## Summary
    - make resolved turn environment shell metadata optional instead of
    hard-coding bash
    - render environment context shells from explicit environment metadata
    when present, falling back to the existing session shell
    - update environment context tests for inherited PowerShell-style
    fallback and explicit per-environment shell override
    
    ## Testing
    - Not run (not requested; formatted with `just fmt`).
    
    Co-authored-by: Codex <noreply@openai.com>
  • Avoid noisy OTEL diagnostics in codex exec (#21107)
    `codex exec` should not print OpenTelemetry exporter self-diagnostics to
    stderr by default. Suppress the SDK and OTLP exporter targets unless
    callers
    explicitly opt in with `RUST_LOG`.
    
    Also stop defaulting the trace exporter to the log exporter, since OTLP
    HTTP
    endpoints are signal-specific and a logs endpoint is not valid for
    spans.
    
    Co-authored-by: Codex <noreply@openai.com>
    
    Co-authored-by: Codex <noreply@openai.com>
  • Route opted-in MCP elicitations through Guardian (#19431)
    # Motivation
    
    Browser Use origin-access prompts are MCP elicitations, not direct
    tool-call approval prompts, so they were bypassing the Guardian approval
    path. We need a generic opt-in that lets eligible MCP elicitations use
    Guardian when the current turn already routes approvals there.
    
    # Description
    
    Add a generic elicitation reviewer hook in codex-mcp and wire codex-core
    to pass a Guardian reviewer callback when creating the MCP connection
    manager. The reviewer validates explicit mcp_tool_call opt-in metadata,
    builds a Guardian MCP tool-call review request from
    server/tool/connector metadata and tool params, and maps Guardian
    approval, denial, timeout, and cancellation decisions back to MCP
    elicitation responses.
    
    The new option to trigger this in the `_meta` object is:
    ```
    "codex_request_type": "approval_request",
    ```
    
    # Testing
    
    - RUST_MIN_STACK=8388608 NEXTEST_STATUS_LEVEL=leak cargo nextest run
    --no-fail-fast --cargo-profile ci-test --test-threads 2
    - cargo clippy --tests -- -D warnings
    - cargo fmt -- --config imports_granularity=Item --check
    - cargo shear
    - pnpm run format
    - python3 .github/scripts/verify_cargo_workspace_manifests.py
    - python3 .github/scripts/verify_tui_core_boundary.py
    - python3 .github/scripts/verify_bazel_clippy_lints.py
    - git diff --check
  • Remove core MCP list tools op (#21281)
    ## Why
    
    The core `Op::ListMcpTools` request path is no longer needed. Keeping it
    around left a dead request/response surface alongside the app-server MCP
    inventory APIs that own current server status listing.
    
    ## What Changed
    
    - Removed `Op::ListMcpTools`, `EventMsg::McpListToolsResponse`, and the
    core handler that built the MCP snapshot response.
    - Removed the now-unused `codex-mcp` snapshot wrapper/export and passive
    event handling arms in rollout and MCP-server consumers.
    - Updated tests that used the old op as a synchronization hook to wait
    on existing startup/skills events, and deleted the plugin test that only
    exercised the removed listing op.
    
    ## Validation
    
    - `cargo test -p codex-protocol`
    - `cargo test -p codex-mcp`
    - `cargo test -p codex-rollout -p codex-rollout-trace -p
    codex-mcp-server`
    - `cargo test -p codex-core --test all
    pending_input::queued_inter_agent_mail`
    - `cargo test -p codex-core --test all
    rmcp_client::stdio_mcp_tool_call_includes_sandbox_state_meta`
    - `cargo test -p codex-core --test all
    rmcp_client::stdio_image_responses`
    - `just fix -p codex-core -p codex-protocol -p codex-mcp -p
    codex-rollout -p codex-rollout-trace -p codex-mcp-server`
  • [codex] Add response.processed websocket request (#21284)
    ## Summary
    
    - Add a `response.processed` websocket request payload and sender for
    Responses API websockets.
    - Send `response.processed` from `try_run_sampling_request` after a
    response completes, local turn processing succeeds, and the
    session-owned feature flag is enabled.
    - Add websocket coverage for both enabled and disabled feature-flag
    behavior.
    
    ## Validation
    
    - `just fmt`
    - `cargo test -p codex-core response_processed`
    - `cargo test -p codex-api responses_websocket`
    - `cargo test -p codex-features
    responses_websocket_response_processed_is_under_development`
    - `git diff --check`
    - `just fix -p codex-api -p codex-core -p codex-features`
    - `git diff --check origin/main...HEAD`
  • Move message history out of core (#21278)
    ## Why
    
    Message history was implemented inside `codex-core` and surfaced through
    core protocol ops and `SessionConfiguredEvent` fields even though the
    current consumer is TUI-local prompt recall. That made core own UI
    history persistence and exposed `history_log_id` / `history_entry_count`
    through surfaces that app-server and other clients do not need.
    
    This change moves message history persistence out of core and keeps the
    recall plumbing local to the TUI.
    
    ## What changed
    
    - Added a new `codex-message-history` crate for appending, looking up,
    trimming, and reading metadata from `history.jsonl`.
    - Removed core protocol history ops/events: `AddToHistory`,
    `GetHistoryEntryRequest`, and `GetHistoryEntryResponse`.
    - Removed `history_log_id` and `history_entry_count` from
    `SessionConfiguredEvent` and updated exec/MCP/test fixtures accordingly.
    - Updated the TUI to dispatch local app events for message-history
    append/lookup and keep its persistent-history metadata in TUI session
    state.
    
    ## Validation
    
    - `cargo test -p codex-message-history -p codex-protocol`
    - `cargo test -p codex-exec event_processor_with_json_output`
    - `cargo test -p codex-mcp-server outgoing_message`
    - `cargo test -p codex-tui`
    - `just fix -p codex-message-history -p codex-protocol -p codex-core -p
    codex-tui -p codex-exec -p codex-mcp-server`
  • 2- Use string service tiers in session protocol (#20971)
    ## Summary
    - break service tier session/op/app-server protocol fields from the
    closed enum to string tier ids
    - send the service tier string directly through model requests, prewarm,
    compaction, memories, and TUI/app-server turn starts
    - regenerate app-server protocol JSON/TypeScript schemas, removing the
    standalone ServiceTier TS enum
    
    ## Verification
    - just fmt
    - cargo check -p codex-core -p codex-app-server -p codex-tui
    - just write-app-server-schema
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Move installation ID resolution out of core startup (#21182)
    ## Summary
    
    - resolve or inject the installation ID before core startup and pass it
    through `ThreadManager`, `CodexSpawnArgs`, and `Session` as a plain
    `String`
    - keep child sessions on the parent installation ID instead of
    rediscovering it inside core
    - propagate installation ID startup failures in `mcp-server` instead of
    panicking
    
    ## Why
    
    Core was still touching the filesystem on the session startup path to
    discover `installation_id`. This moves that work to the outer host
    boundary so core no longer depends on `codex_home` reads during session
    construction.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Propagate cache key and service tiers in compact (#21249)
    ## Why
    
    `/responses/compact` should preserve the request-affinity fields that
    apply to the active auth mode. ChatGPT-auth compact requests need the
    effective `service_tier`, and compact requests for every auth mode need
    the stable `prompt_cache_key`, so compaction does not quietly lose
    routing or cache behavior that normal sampling already has.
    
    This follows the request-parity direction from #20719, but keeps the net
    change focused on the compact payload fields needed here.
    
    ## What changed
    
    - Add `service_tier` and `prompt_cache_key` to the compact endpoint
    input payload.
    - Build the remote compact payload from the existing responses request
    builder output so `Fast` still maps to `priority` when compact sends a
    service tier.
    - Pass the turn service tier into remote compaction, but only include it
    in compact payloads for ChatGPT-backed auth.
    - Keep `prompt_cache_key` on compact payloads for all auth modes.
    - Add request-body diff snapshot coverage in
    `core/tests/suite/compact_remote.rs` for:
    - API-key auth reusing `prompt_cache_key` while omitting `service_tier`
    even when `Fast` is configured.
      - ChatGPT auth reusing both `service_tier` and `prompt_cache_key`.
    - Drive the snapshot coverage through five varied turns: plain text,
    multi-part text, tool-call continuation, image+text input, local-shell
    continuation, and final-turn reasoning output.
    
    ## Verification
    
    - Added insta snapshots for compact request-body parity against the last
    normal `/responses` request after five varied turns.
    - Not run locally per repo guidance; relying on GitHub CI for test
    execution.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • feat: include thread ID in MCP turn metadata (#21329)
    ## Why
    
    MCP tool calls already include `session_id` in `x-codex-turn-metadata`,
    but descendant threads intentionally share that value with the root
    thread. Consumers that need to correlate work at the concrete thread
    level also need the current `thread_id`.
    
    ## What changed
    
    - add `thread_id` to `x-codex-turn-metadata` while preserving
    `session_id` as the shared session identity
    - thread the two identities separately through normal turns and spawned
    review threads
    - add regression coverage for resumed sessions, reserved metadata
    fields, and deferred MCP tool calls
    
    ## Verification
    
    - added focused coverage in `core/src/session/tests.rs`,
    `core/src/turn_metadata_tests.rs`, and `core/tests/suite/search_tool.rs`
  • feat: add session_id (#20437)
    ## Summary
    
    Related to
    https://openai.slack.com/archives/C095U48JNL9/p1777537279707449
    TLDR:
    We update the meaning of session ids and thread ids:
    * thread_id stays as now
    * session_id become a shared id between every thread under a /root
    thread (i.e. every sub-agent share the same session id)
    
    This PR introduces an explicit `SessionId` and threads it through the
    protocol/client boundary so `session_id` and `thread_id` can diverge
    when they need to, while preserving compatibility for older serialized
    `session_configured` events.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Support Codex Apps auth elicitations (#19193)
    ## Summary
    
    - request URL-mode MCP elicitations when Codex Apps tool calls fail with
    connector auth metadata
    - route Codex Apps auth URL elicitations into the TUI app-link flow
    
    ## Test plan
    
    - `just fmt`
    - `cargo test -p codex-core mcp_tool_call::tests`
    - `cargo test -p codex-mcp`
    - `cargo test -p codex-tui bottom_pane::app_link_view::tests`
    - `just fix -p codex-core`
    - `just fix -p codex-mcp`
    - `just fix -p codex-tui`
    
    Also attempted broader local runs:
    
    - `cargo test -p codex-core` fails in unrelated
    config/request-permission/proxy-sensitive tests under the current Codex
    Desktop environment.
    - `cargo test -p codex-tui` fails in unrelated status
    snapshots/trust-default tests because the ambient environment renders
    workspace-write/network permission defaults.
  • [mcp] Return Accept early per feedback. (#21277)
    - [x] Return Accept early when auto_deny is enabled per feedback.
  • Preserve session MCP config on refresh (#21055)
    # Overview
    MCP refreshes were rebuilding active threads from fresh disk-backed
    config only, which dropped thread-start session overlays such as
    app-injected MCP servers. This keeps refreshes current with disk config
    while preserving the thread-local config that only the active thread
    knows about.
    
    # Changes
    - Rebuild refreshed config per active thread using that thread's current
    `cwd`, rather than fanning out one app-server config to every thread.
    - Preserve each thread's `SessionFlags` layer while replacing reloadable
    config layers with freshly loaded config, then derive the MCP refresh
    payload from the rebuilt result.
    - Move MCP refresh orchestration into app-server so manual refreshes
    fail loudly while background refreshes remain best-effort, and route
    plugin-triggered refreshes through the same per-thread reload path.
    - Add regression coverage for session overlays, fresh project config,
    plugin-derived MCP config, current requirements, and strict vs
    best-effort refresh behavior.
    
    # Verification
    - Passed focused Rust coverage for the thread-config rebuild behavior
    and deferred MCP refresh flow, plus `cargo test -p codex-app-server
    --lib`.
    - Verified end to end in the Codex dev app against the locally built
    CLI: registered an MCP via thread config, verified that it could be used
    successfully before refresh, manually triggered MCP refresh, and
    verified that it continued to be available afterward.
  • [codex-analytics] rework thread_source for thread analytics (#20949)
    ## Summary
    - make `thread_source` an explicit optional thread-level field on
    `thread/start`, `thread/fork`, and returned thread payloads
    - persist `thread_source` in rollout/session metadata so resumed live
    threads retain the original value
    - replace the old best-effort `session_source` -> `thread_source`
    mapping with an explicit caller-supplied analytics classification
    
    ## Why
    Before this change, analytics `thread_source` was populated by a
    best-effort mapping from `session_source`. `session_source` describes
    the runtime/client surface, not the actual thread-level origin, so that
    projection was not accurate enough to distinguish cases such as `user`,
    `subagent`, `memory_consolidation`, and future thread origins reliably.
    
    Making `thread_source` explicit keeps one thread-level analytics field
    while letting callers provide the real classification directly instead
    of recovering it indirectly from `session_source`.
    
    ## Impact
    For new analytics events, `thread_source` now reflects the explicit
    thread-level classification supplied by the caller rather than an
    inferred value derived from `session_source`. Existing protocol fields
    remain optional; callers that omit `threadSource` now produce `null`
    instead of a best-effort inferred value.
    
    ## Validation
    - `just write-app-server-schema`
    - `cargo test -p codex-analytics -p codex-core -p
    codex-app-server-protocol --no-run`
    - `cargo test -p codex-app-server-protocol
    generated_ts_optional_nullable_fields_only_in_params`
    - `cargo test -p codex-analytics
    thread_initialized_event_serializes_expected_shape`
    - `cargo test -p codex-core
    resume_stopped_thread_from_rollout_preserves_thread_source`
  • [codex] Remove legacy ListSkills op (#21282)
    ## Why
    
    `skills/list` is already exposed through app-server v2 and covered by
    the app-server test suite. Keeping the separate core `Op::ListSkills`
    path leaves a duplicate legacy protocol surface that no longer needs to
    be maintained.
    
    ## What Changed
    
    - Removed `Op::ListSkills` and `EventMsg::ListSkillsResponse` from the
    core protocol.
    - Deleted the corresponding core session handler and stale core
    integration tests.
    - Removed rollout/MCP ignore branches and protocol v1 docs references
    for the deleted event/op.
    - Left app-server `skills/list` and its existing coverage intact.
    
    ## Validation
    
    - `cargo test -p codex-protocol`
    - `cargo test -p codex-core --test all suite::skills`
    - `cargo check -p codex-mcp-server -p codex-rollout -p
    codex-rollout-trace`
    - `just fix -p codex-core`
  • Add model and reasoning effort to MCP turn metadata (#21219)
    ## Why
    - Similar change as https://github.com/openai/codex/pull/19473.
    - Without change: MCP tool calls receive
    `_meta["x-codex-turn-metadata"]` with `session_id`, `turn_id`, and
    `turn_started_at_unix_ms`.
    - Issue: MCP servers may want the model and reasoning effort to better
    understand tool-call behavior and latency relative to turn start.
    
    ## What Changed
    - With change: MCP turn metadata now includes `model` and
    `reasoning_effort`, propagated in `_meta["x-codex-turn-metadata"]`.
    - Normal `/responses` turn metadata headers are unchanged.
    
    ## Verification
    - `codex-rs/core/src/mcp_tool_call_tests.rs`
    - `codex-rs/core/src/turn_metadata_tests.rs`
    - `codex-rs/core/tests/suite/search_tool.rs`
  • [codex] Move thread naming to app server (#21260)
    ## Why
    
    Thread names are app-server metadata now, backed by the thread store and
    sqlite state database. Keeping a core `SetThreadName` op plus a rollout
    `thread_name_updated` event made rename persistence live in the wrong
    layer and required historical replay support for an event that new
    app-server flows should not write.
    
    ## What changed
    
    - Removed `Op::SetThreadName` and `EventMsg::ThreadNameUpdated` from the
    core protocol and deleted the core handler path that appended rename
    events to rollouts.
    - Updated app-server `thread/name/set` so both loaded and unloaded
    threads write through thread-store metadata and app-server emits
    `thread/name/updated` notifications.
    - Updated local thread-store name metadata updates to write sqlite title
    metadata and the legacy thread-name index without appending rollout
    events.
    - Removed state extraction and rollout handling for the deleted
    thread-name event.
    
    ## Validation
    
    - `cargo test -p codex-app-server thread_name_updated_broadcasts`
    - `cargo test -p codex-app-server
    thread_name_set_is_reflected_in_read_list_and_resume`
    - `cargo test -p codex-thread-store
    update_thread_metadata_sets_name_on_active_rollout_and_indexes_name`
    - `cargo test -p codex-state`
    - `cargo check -p codex-mcp-server -p codex-rollout-trace`
    - `just fix -p codex-app-server -p codex-thread-store -p codex-state -p
    codex-mcp-server -p codex-rollout-trace`
    
    ## Docs
    
    No external documentation update is expected for this internal ownership
    change.
  • linux-sandbox: use standalone bundled bwrap (#21255)
    **Summary**
    - Add `codex-bwrap`, a standalone `bwrap` binary built from the existing
    vendored bubblewrap sources.
    - Remove the linked vendored bwrap path from `codex-linux-sandbox`;
    runtime now prefers system `bwrap` and falls back to bundled
    `codex-resources/bwrap`.
    - Add bundled SHA-256 verification with missing/all-zero digest as the
    dev-mode skip value, then exec the verified file through
    `/proc/self/fd`.
    - Keep `launcher.rs` focused on choosing and dispatching the preferred
    launcher. Bundled lookup, digest verification, and bundled exec now live
    in `linux-sandbox/src/bundled_bwrap.rs`; Bazel runfiles lookup lives in
    `linux-sandbox/src/bazel_bwrap.rs`; shared argv/fd exec helpers live in
    `linux-sandbox/src/exec_util.rs`.
    - Teach Bazel tests to surface the Bazel-built `//codex-rs/bwrap:bwrap`
    through `CARGO_BIN_EXE_bwrap`; `codex-linux-sandbox` only honors that
    fallback in debug Bazel runfiles environments so release/user runtime
    lookup stays tied to `codex-resources/bwrap`.
    - Allow `codex-exec-server` filesystem helpers to preserve just the
    Bazel bwrap/runfiles variables they need in debug Bazel builds, since
    those helpers intentionally rebuild a small environment before spawning
    `codex-linux-sandbox`.
    - Verify the Bazel bwrap target in Linux release CI with a build-only
    check. Running `bwrap --version` is too strong for GitHub runners
    because bubblewrap still attempts namespace setup there.
    
    **Verification**
    - Latest update: `cargo test -p codex-linux-sandbox`
    - Latest update: `just fix -p codex-linux-sandbox`
    - `cargo check --target x86_64-unknown-linux-gnu -p codex-linux-sandbox`
    could not run locally because this macOS machine does not have
    `x86_64-linux-gnu-gcc`; GitHub Linux Bazel CI is expected to cover the
    Linux-only modules.
    - Earlier in this PR: `cargo test -p codex-bwrap`
    - Earlier in this PR: `cargo test -p codex-exec-server`
    - Earlier in this PR: `cargo check --release -p codex-exec-server`
    - Earlier in this PR: `just fix -p codex-linux-sandbox -p
    codex-exec-server`
    - Earlier in this PR: `bazel test --nobuild
    //codex-rs/linux-sandbox:linux-sandbox-all-test
    //codex-rs/core:core-all-test
    //codex-rs/exec-server:exec-server-file_system-test
    //codex-rs/app-server:app-server-all-test` (analysis completed; Bazel
    then refuses to run tests under `--nobuild`)
    - Earlier in this PR: `bazel build --nobuild //codex-rs/bwrap:bwrap`
    - Prior to this update: `just bazel-lock-update`, `just
    bazel-lock-check`, and YAML parse check for
    `.github/workflows/bazel.yml`
    
    
    ---
    [//]: # (BEGIN SAPLING FOOTER)
    Stack created with [Sapling](https://sapling-scm.com). Best reviewed
    with [ReviewStack](https://reviewstack.dev/openai/codex/pull/21255).
    * #21257
    * #21256
    * __->__ #21255
  • codex: use ThreadStore history for core review forks (#20577)
    - fork loaded parent threads from `ThreadStore` history in core agent
    control paths
    - migrate guardian review fork history to loaded session history instead
    of rereading rollout files
    
    ## Verification
    - `cargo test -p codex-core spawn_agent_fork`
  • Inject state DB, agent graph store (#20689)
    ## Why
    
    We want the agent graph store to be passed down the stack as a real
    dependency, the same way we already treat the thread store.
    
    This will let us inject the agent graph store as a real dependency and
    support implementations other than the local SQLite-backed one. Right
    now most code instantiates a state DB and an agent graph store
    just-in-time. Ideally, we would not depend on the state DB directly but
    only read through the higher-level interfaces.
    
    This change makes the dependency boundaries explicit and moves state DB
    initialization to process bootstrap instead of hiding it inside local
    store implementations.
    
    ## What changed
    
    - `ThreadManager` now requires a `StateDbHandle` and an
    `AgentGraphStore` at construction time instead of treating them as
    optional internals.
    - The local store constructors no longer lazily initialize SQLite.
    Callers now initialize the state DB once per process and use that shared
    handle to build:
      - `LocalThreadStore`
      - `LocalAgentGraphStore`
    - App bootstraps (`app-server`, `mcp-server`, `prompt_debug`, and the
    thread-manager sample) now initialize the state DB up front and inject
    the resulting handle down the stack.
    - `app-server` now consistently uses its process-scoped state DB handle
    instead of reopening SQLite or trying to recover it from loaded threads.
    - Device-key storage now reuses the shared state DB handle instead of
    maintaining its own lazy opener.
    - The thread archive / descendant traversal paths now use the injected
    `AgentGraphStore` instead of reaching through local
    thread-store-specific state.
    
    ## Verification
    
    - `cargo check -p codex-core -p codex-thread-store -p codex-app-server
    -p codex-mcp-server -p codex-thread-manager-sample --tests`
    - `cargo test -p codex-thread-store`
    - `cargo test -p codex-core
    thread_manager_accepts_separate_agent_graph_store_and_thread_store --
    --nocapture`
    - `cargo test -p codex-app-server
    thread_archive_archives_spawned_descendants -- --nocapture`
  • Auto-deny MCP elicitations for Xcode 26.4 clients (#21113)
    ## Summary
    
    Xcode 26.4 was built against app-server behavior from before MCP
    elicitation requests became client-visible in CLI 0.120.0 via #17043.
    That client line does not expect the new events/messages, so this PR
    restores the old behavior for exactly that client/version combination.
    
    The compatibility handling stays in the app-server layer: when the
    initialized client is `Xcode` and its version starts with `26.4`, the
    app server marks the live Codex thread so MCP elicitations are
    auto-denied. The flag is applied on thread start/resume/fork/turn
    attachment, carried through `Codex`/`CodexThread`, and stored on
    `McpConnectionManager` so refreshed MCP managers preserve the behavior.
    
    ## Notes
    
    This is intentionally narrow and includes a TODO to remove the
    compatibility path once Xcode 26.4 ages out.
  • [codex] Split tool handlers by tool name (#20687)
    ## Why
    
    Tool registration used to bind a tool name to a handler externally,
    which left ownership split between the registry plan and the handler
    implementation. Some built-in handlers also multiplexed multiple in-core
    tools by switching on the invoked tool name internally.
    
    This moves the registry identity onto the handler itself and makes
    built-in multi-tool areas use separate concrete handlers, so each
    registered handler instance owns exactly one tool name and one dispatch
    path.
    
    ## What Changed
    
    - Added `ToolHandler::tool_name()` and changed
    `ToolRegistryBuilder::register_handler` to derive the registry key from
    the handler.
    - Split built-in multiplexed handlers into concrete per-tool handlers
    for unified exec, shell/local shell/container exec, MCP resources, goal
    tools, and agent job tools.
    - Kept name-carrying handler instances only where the runtime target is
    inherently external or dynamic, such as MCP tools, dynamic tools, and
    unavailable placeholders.
    - Updated `ToolHandlerKind` and registry-plan construction so plan
    entries map directly to concrete handler registrations.
    
    ## Verification
    
    - `cargo test -p codex-tools tool_registry_plan`
    - `cargo test -p codex-core --lib tools::registry_tests`
    - `just fix -p codex-tools`
    - `just fix -p codex-core`
  • feat(tui): redesign session picker (#20065)
    ## Why
    
    The resume/fork picker is becoming the main way users recover previous
    work, but the old fixed table made sessions hard to scan once thread
    names, branches, working directories, and timestamps all mattered. This
    redesign makes the picker denser by default, easier to search, and safer
    to inspect before resuming or forking.
    
    <table>
    <tr>
    <td>
    <img width="1660" height="1103" alt="CleanShot 2026-05-03 at 12 34 10"
    src="https://github.com/user-attachments/assets/313ede1d-1da4-4863-acd2-56b3e27e9703"
    />
    </td>
    <td>
    <img width="1662" height="1100" alt="CleanShot 2026-05-03 at 12 34 15"
    src="https://github.com/user-attachments/assets/cfde7d5c-bab0-4994-a807-254e53f344ea"
    />
    </td>
    </tr>
    <tr>
    <td>
    <img width="1664" height="1107" alt="CleanShot 2026-05-03 at 12 39 22"
    src="https://github.com/user-attachments/assets/e1ee58ca-4dc5-4a35-ae0f-47562da3974c"
    />
    </td>
    <td>
    <img width="1662" height="1100" alt="CleanShot 2026-05-03 at 12 35 09"
    src="https://github.com/user-attachments/assets/9c888072-eedf-4f45-985c-0c14df28bcc7"
    />
    </td>
    </tr>
    </table>
    
    ## What Changed
    
    - Replaces the old session table with responsive session rows that
    prioritize the session name or preview, then show timestamp, cwd, and
    branch metadata.
    - Makes dense view the default while keeping comfortable view available
    through `Ctrl+O`.
    - Persists the picker view preference in `[tui].session_picker_view`,
    including active profile-scoped config.
    - Adds sort/filter controls for updated time, created time, cwd, and all
    sessions.
    - Expands search matching across session name, preview, thread id,
    branch, and cwd.
    - Makes `Esc` safer in search mode: it clears an active query before
    starting a new session.
    - Adds lazy transcript inspection:
      - `Space` expands recent transcript context inline.
      - `Ctrl+T` opens a transcript overlay.
      - raw reasoning visibility follows `show_raw_agent_reasoning`.
    - Keeps remote cwd filtering server-side for remote app-server sessions
    so local path normalization does not incorrectly hide remote results.
    - Updates snapshots and config schema for the new picker states and
    config option.
    
    ## How to Test
    
    1. Start Codex in a repo with several saved sessions.
    2. Press `Ctrl+R` / resume picker entry point.
    3. Confirm the picker opens in dense mode and shows session name or
    preview, timestamp, cwd, and branch metadata.
    4. Press `Ctrl+O` and confirm it switches between dense and comfortable
    views.
    5. Restart Codex and confirm the selected view persists.
    6. Type a query that matches a branch, cwd, thread id, or session name;
    confirm matching sessions appear.
    7. Press `Esc` while the query is non-empty and confirm it clears search
    instead of starting a new session.
    8. Select a session and press `Space`; confirm recent transcript context
    expands inline.
    9. Press `Ctrl+T`; confirm the transcript overlay opens and respects
    raw-reasoning visibility settings.
    
    Targeted tests:
    - `cargo test -p codex-tui resume_picker --no-fail-fast`
    - `cargo test -p codex-core
    runtime_config_resolves_session_picker_view_default_and_override`
    - `cargo test -p codex-core profile_tui_rejects_unsupported_settings`
    - `cargo check -p codex-thread-manager-sample`
    - `cargo insta pending-snapshots`
  • hook trust metadata and enforcement (#20321)
    # Why
    
    We want shared hook trust that both the app and the TUI can build on,
    but the metadata is only useful if runtime behavior agrees with it. This
    PR adds a single backend trust model for hooks so unmanaged hooks cannot
    run until the current definition has been reviewed, while managed hooks
    remain runnable and non-configurable.
    
    # What
    
    - persist `trusted_hash` alongside hook state in `config.toml`
    - expose `currentHash` and derived `trustStatus` through `hooks/list`
    - derive trust from normalized hook definitions so equivalent hooks from
    `config.toml` and `hooks.json` share the same trust identity
    - gate unmanaged hooks on trust before they enter the runnable handler
    set
    
    # Reviewer Notes
    
    - key file to review is `codex-rs/hooks/src/engine/discovery.rs`
    - the only **core** change is schema related
  • Route process tools to selected environments (#20647)
    ## Why
    When a turn exposes multiple selected environments, shell-style tools
    need a model-facing way to identify the intended target environment and
    handlers need to resolve that target before parsing cwd-relative
    permission fields or launching processes.
    
    This PR scopes that rollout to process tools. Filesystem-oriented tools
    such as `apply_patch`, `view_image`, and `list_dir` are intentionally
    left for follow-up slices.
    
    ## What Changed
    - Adds an `include_environment_id` option to shell-style tool schema
    builders.
    - Exposes optional `environment_id` on `shell`, `shell_command`, and
    `exec_command` only when `ToolEnvironmentMode::Multiple` is active.
    - Adds a shared handler helper that parses `environment_id` and
    `workdir` from JSON function-call arguments and returns the selected
    `Environment` plus effective absolute cwd.
    - Uses that helper in `shell`, `shell_command`, and `exec_command`
    handling so process execution uses the selected environment filesystem
    and cwd.
    - Changes `ExecCommandRequest` to carry a required resolved `cwd`,
    removing the process-manager fallback to the primary turn cwd for new
    exec commands.
    - Leaves `write_stdin` unchanged because it targets an existing process
    id, not a new environment.
    
    ## Testing
    - Added unit coverage for process-tool schema exposure, selected
    environment resolution, primary fallback, no-environment handling,
    unknown environment ids, and resolving cwd-relative permission paths
    against the selected environment cwd.
    - Added a remote-suite e2e coverage case for `exec_command` routing
    across explicit zero environments, one local environment, and
    local+remote environments.
    - Ran `just fmt` and `git diff --check`.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • feat(tui): add raw scrollback mode (#20819)
    ## Why
    
    Granular copy is particularly difficult with the current output. Part of
    it was solved with the introduction of the `/copy` command but when you
    only need to copy parts of a response, you still encounter some issues:
    
    - When you copy a paragraph, the result is a sequence of separate lines
    instead of one correctly joined paragraph.
    - When a word wraps, part of it stays on the original line and the rest
    appears at the start of the next line.
    - When you copy a long command, extra line breaks are often inserted,
    and command arguments can be split across multiple lines.
    
    
    https://github.com/user-attachments/assets/0ef85c84-9363-4aad-b43a-15fce062a443
    
    ## Solution
    
    Now that we own the scrollback and we re-create it when we resize, we
    have the opportunity of toggling between the raw text and the rich text
    we see today.
    
    - Add TUI raw scrollback mode with `tui.raw_output_mode`, `/raw
    [on|off]`, and the configurable `tui.keymap.global.toggle_raw_output`
    action.
    - Render transcript cells through rich/raw-aware paths so raw mode
    preserves source text and lets the terminal soft-wrap selection-friendly
    output.
    - Bind raw-mode toggle to `alt-r` by default, with the keybinding path
    toggling silently while `/raw` continues to emit confirmation messages.
    
    ## Related Issues
    
    Likely addressed by raw mode:
    
    - #12200: clean copy for multiline and soft-wrapped output. Raw mode
    removes Codex-inserted wrapping/indentation and lets the terminal
    soft-wrap logical lines.
    - #9252: command suggestions gain unwanted leading spaces when copied.
    Raw mode renders transcript text without the rich-mode left
    padding/gutter.
    - #8258: prompt output is hard to copy because of leading indentation.
    Raw mode renders user/source-backed transcript text without that
    decorative indentation.
    
    Partially or conditionally addressed:
    
    - #2880: copy/export message as Markdown. Raw mode exposes raw Markdown
    for terminal selection, but this PR does not add a dedicated
    export/copy-message command.
    - #19820: mouse drag selection + copy in the TUI. Raw mode improves
    terminal-native selection of output/history text, but this PR does not
    implement in-TUI mouse selection, highlighting, auto-copy, or composer
    selection.
    - #18979: copied content is divided into two parts. This should improve
    cases caused by Codex-inserted wraps/padding in rendered output; if the
    report is about pasting into the composer/input path, that remains
    outside this PR.
    
    ## Validation
    
    - `just write-config-schema`
    - `just fmt`
    - `cargo test -p codex-config`
    - `cargo test -p codex-tui`
    - `just fix -p codex-tui`
    - `just argument-comment-lint`
    - `cargo test -p codex-tui
    raw_output_mode_can_change_without_inserting_notice -- --nocapture`
    - `cargo test -p codex-tui
    raw_slash_command_toggles_and_accepts_on_off_args -- --nocapture`
    - `cargo test -p codex-tui raw_output_toggle -- --nocapture`
    - `git diff --check`
    - `cargo insta pending-snapshots`
  • revert legacy notify deprecation (#21152)
    # Why
    
    Revert #20524 for now because the computer use plugin has not migrated
    off legacy `notify` yet. Keeping the deprecation in place today would
    show users a warning before the plugin path is ready to move, so this
    rolls the change back until that migration is complete.
    
    # What
    
    - revert the legacy `notify` deprecation change from #20524
    - restore the prior `notify` behavior and remove the temporary
    deprecation metrics/docs from that change
    
    Once the computer use plugin has migrated, we can land the same
    deprecation again.
  • Support PreToolUse additionalContext (#20692)
    # Why
    
    `PreToolUse` already exposes `hookSpecificOutput.additionalContext` in
    the generated hook schema, but the runtime still rejected it as
    unsupported. That leaves `PreToolUse` out of step with the other
    context-injecting hooks and prevents hook authors from attaching
    model-visible guidance to a pending tool call before it runs.
    
    # What
    
    - Parse `PreToolUse.additionalContext` and carry it through the hook
    event pipeline.
    - Record `PreToolUse` context at the hook boundary so successful context
    is preserved for both allowed and blocked calls without widening the
    tool registry surface.
    - Preserve existing deny behavior when context is combined with either
    `permissionDecision: "deny"` or the legacy `decision: "block"` shape.
  • Add goal lifecycle metrics (#20799)
    ## Why
    
    Adding goal metrics makes it possible to track how often goals are
    created, completed, and stopped by budget limits, plus the final token
    and wall-clock usage for terminal outcomes.
    
    ## What Changed
    
    - Added OpenTelemetry metric constants for goal lifecycle tracking:
    - `codex.goal.created`: increments each time a new persisted goal is
    created or an existing goal is replaced with a new objective.
    - `codex.goal.completed`: increments when a goal transitions to
    `complete`.
    - `codex.goal.budget_limited`: increments when a goal transitions to
    `budget_limited` because its token budget has been reached.
    - `codex.goal.token_count`: records the final persisted token count when
    a goal transitions to `complete` or `budget_limited`.
    - `codex.goal.duration_s`: records the final persisted elapsed
    wall-clock time, in seconds, when a goal transitions to `complete` or
    `budget_limited`.
    - Emitted creation metrics when a goal is created or replaced.
    - Emitted terminal outcome counters and final usage histograms when a
    goal transitions to `complete` or `budget_limited`, avoiding
    double-counting later in-flight accounting for already budget-limited
    goals.
    - Added focused `codex-core` tests for create/complete metrics and
    one-time budget-limit metrics.
  • tools: remove unused experimental list_dir tool (#21170)
    ## Why
    `list_dir` still carries a full spec/handler/test path, but nothing in
    the current model catalog advertises it via
    `experimental_supported_tools`. That leaves us maintaining an
    environment-backed tool surface that is effectively unused.
    
    ## What changed
    - delete the `list_dir` handler and its tests from `codex-core`
    - remove the `list_dir` spec builder, handler kind, and registry wiring
    from `codex-tools`
    - clean up the remaining internal README and registry tests so they no
    longer mention the removed tool