* feat(agent): add mid-turn message injection for responsive follow-ups
Allow user messages sent during an active agent turn to be injected
into the running LLM context instead of being queued behind a
per-session lock. Inspired by Claude Code's mid-turn queue drain
mechanism (query.ts:1547-1643).
Key design decisions:
- Messages are injected as natural user messages between iterations,
no tool cancellation or special system prompt needed
- Two drain checkpoints: after tool execution and after final LLM
response ("last-mile" to prevent dropping late arrivals)
- Bounded by MAX_INJECTION_CYCLES (5) to prevent consuming the
iteration budget on rapid follow-ups
- had_injections flag bypasses _sent_in_turn suppression so follow-up
responses are always delivered
Closes#1609
* fix(agent): harden mid-turn injection with streaming fix, bounded queue, and message safety
- Fix streaming protocol violation: Checkpoint 2 now checks for injections
BEFORE calling on_stream_end, passing resuming=True when injections found
so streaming channels (Feishu) don't prematurely finalize the card
- Bound pending queue to maxsize=20 with QueueFull handling
- Add warning log when injection batch exceeds _MAX_INJECTIONS_PER_TURN
- Re-publish leftover queue messages to bus in _dispatch finally block to
prevent silent message loss on early exit (max_iterations, tool_error, cancel)
- Fix PEP 8 blank line before dataclass and logger.info indentation
- Add 12 new tests covering drain, checkpoints, cycle cap, queue routing,
cleanup, and leftover re-publish
- test_exec_head_tail_truncation: use temp script file instead of
python -c to avoid cmd.exe quote-parsing issues after PR #2893
- test_grep_files_with_matches_supports_head_limit_and_offset: query
full result set first to avoid mtime-dependent sort assumption
ExecTool hardcoded bash, breaking exec on Windows. Now uses cmd.exe
via COMSPEC on Windows with a curated minimal env (PATH, SYSTEMROOT,
etc.) that excludes secrets. bwrap sandbox gracefully skips on Windows.
Seeding PATH in the env before bash -l caused /etc/profile
to skip its default PATH setup, breaking standard commands.
Move path_append to an inline export so the login shell
establishes a proper base PATH first.
Add regression test: ls still works when path_append is set.
Made-with: Cursor
The exec tool previously passed the full parent process environment to
child processes, which meant LLM-generated commands could access secrets
stored in env vars (e.g. API keys from EnvironmentFile=).
Switch from subprocess_shell with inherited env to bash login shell
with a minimal environment (HOME, LANG, TERM only). The login shell
sources the user's profile for PATH setup, making the pathAppend
config option a fallback rather than the primary PATH mechanism.
- Introduced a helper method `_for_each_hook_safe` to reduce code duplication in hook method implementations.
- Updated error logging to include the method name for better traceability.
- Improved the `SkillsLoader` class by adding a new method `_skill_entries_from_dir` to simplify skill listing logic.
- Enhanced skill loading and filtering logic, ensuring workspace skills take precedence over built-in ones.
- Added comprehensive tests for `SkillsLoader` to validate functionality and edge cases.
The same test function name appeared twice; Python silently shadows the
first definition so it never ran. Keep the version that also asserts
the request URL contains "s.jina.ai".
Made-with: Cursor
