agentydragon

This file documents the changes introduced on the agentydragon branch (off the main branch) of the codex repository.

codex-rs: session resume and playback

Added session subcommand to the CLI (codex session <UUID>) to resume TUI sessions by UUID.
Integrated the uuid crate for session identifiers.
Updated TUI (codex-rs/tui) to respect and replay previous session transcripts:
- Methods: set_session_id, session_id, replay_items.
- Load rollouts from sessions/rollout-<UUID>.jsonl.
Printed resume command on exit: codex session <UUID>.

codex-core enhancements

Exposed core model types: ContentItem, ReasoningItemReasoningSummary, ResponseItem.
Added composer_max_rows setting (with serde default) to TUI configuration.

Dependency updates

Added uuid crate to codex-rs/cli and codex-rs/tui.

Pre-commit config changes

Configured Rust build hook in .pre-commit-config.yaml to fail on warnings by setting RUSTFLAGS="-D warnings".

codex-rs/tui: Undo feedback decision with Esc key

Pressing Esc in feedback-entry mode now cancels feedback entry and returns to the select menu, preserving the partially entered feedback text.
Added a unit test for the ESC cancellation behavior in tui/src/user_approval_widget.rs.

codex-rs/tui: restore inline mount DSL and slash-command dispatch

Reintroduced logic in ChatComposer to dispatch AppEvent::InlineMountAdd and AppEvent::InlineMountRemove when /mount-add or /mount-remove is entered with inline arguments.
Restored dispatch of AppEvent::DispatchCommand for slash commands selected via the command popup, including proper cleanup of the composer input.

codex-rs/tui: slash-command `/edit-prompt` opens external editor

Fixed slash-command /edit-prompt to invoke the configured external editor for prompt drafting (in addition to Ctrl+E).

codex-rs/tui: display context remaining percentage

Added module tui/src/context.rs with heuristics (approximate_tokens_used, max_tokens_for_model, calculate_context_percent_remaining).
Updated ChatWidget and ChatComposer::render_ref to track history items and render <N>% context left indicator with color thresholds.
Added unit tests in tui/tests/context_percent.rs for token counting and percent formatting boundary conditions.

codex-rs/tui: compact Markdown rendering option

Added markdown_compact config flag under UI settings to collapse heading-content spacing when enabled.
When enabled, headings render immediately adjacent to content with no blank line between them.
Updated Markdown rendering in chat UI and logs to honor compact mode globally (diffs, docs, help messages).
Added unit tests covering H1–H6 heading spacing for both compact and default modes.

codex-rs: document MCP servers example in README

Added an inline TOML snippet under “Model Context Protocol Support” in codex-rs/README.md showing how to configure external mcp_servers entries in ~/.codex/config.toml.
Documented codex mcp behavior: JSON-RPC over stdin/stdout, optional sandbox, no ephemeral container, default codex tool schema, and example ListTools/CallTool schema.

Documentation tasks

codex-rs/tui: interactive shell-command affordance via hotkey

Bound Ctrl+M to open a ShellCommandView overlay for arbitrary container shell input.
Toggled shell-command mode with Ctrl+M to enter or exit prompt, with styled border in shell mode.
Executed commands asynchronously (sh -c) and recorded outputs inline in conversation history.
Added unit tests for ShellCommandView event emission and shell-mode toggling behavior.

Tasks live under agentydragon/tasks/ as individual Markdown files. Please update each task’s Status and Implementation sections in place rather than maintaining a static list here.

Branch & Worktree Workflow

Branch convention: work on each task in its own branch named agentydragon-<task-id>-<task-slug>, to avoid refname conflicts.
Worktree helper: in agentydragon/tasks/, run:
Accept a full slug (NN-slug) or two-digit task ID (NN), optionally multiple; --tmux opens each in its own tmux pane and auto-commits each task as its Developer agent finishes:
agentydragon/tools/create_task_worktree.py [--agent] [--tmux] [--interactive] [--shell] [--skip-presubmit] <task-slug|NN> [<task-slug|NN>...]
Without --agent, this creates or reuses a worktree at
agentydragon/tasks/.worktrees/<task-id>-<task-slug> off the agentydragon branch.
Internally, the helper uses CoW hydration instead of a normal checkout: it registers the worktree with git worktree add --no-checkout, then performs a filesystem-level reflink
of all files (macOS: cp -cRp; Linux: cp --reflink=auto), falling back to rsync if reflinks aren’t supported. This makes new worktrees appear nearly instantly on supported filesystems while
preserving untracked files.
With --agent, after setting up a new worktree it runs presubmit pre-commit checks (aborting with a clear message on failure unless --skip-presubmit is passed), then launches the Developer Codex agent (using prompts/developer.md and the task file).
After the Developer agent exits, if the task’s Status is set to Done, it automatically runs the Commit agent helper to stage fixes and commit the work. Commit agent helper: in agentydragon/tasks/, run:

# Generate and apply commit(s) for completed task(s) in their worktrees:
agentydragon/tools/launch_commit_agent.py <task-slug|NN> [<task-slug|NN>...]

After the Developer agent finishes and updates the task file, the Commit agent will write the commit message to a temporary file and then commit using that file (git commit -F). An external orchestrator can then stage files and run pre-commit hooks as usual. You do not need to run git commit manually.

This README was autogenerated to summarize changes on the agentydragon branch.

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