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sessions: vault discovery tools, shared stdin, ctrl-key fixes

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New sessions/session_export tools plus a sessions_block vault map in the system prompt (tai.py, ported to detz); recall/search carry a session footer instead of letting the model grep sealed bytes. write_file refuses new markdown at working/repo roots, and the blanket *.md gitignore is gone so docs stay visible. One LineInput owns fd 0 for every prompt (ask, approvals, shell_ask, secrets), ending phantom-empty answers; Ctrl-C re-prompts (double exits), Ctrl-D exits, Ctrl-Z suspends; mid-turn Ctrl-C announces itself and kills foreground shell children via RunInterrupted. Covered by SessionsTests, repl_keys.py pty checks, agent_diff sessions_block cases.
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retoor
2026-10-28 13:11:45 +01:00
parent e5a6e05ab5
commit 4eff597be7
50 changed files with 1026 additions and 250 deletions
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taicpp/docs/shell.md
+4 -3
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@@ -30,7 +30,8 @@ Anything that runs a process goes through `RunLive` with `ShellIo::Stream` and `
| tai.py | C++ | notes |
|---|---|---|
| `run_live`, `run_live_pty` | `RunLive::Run`, `RunLive::RunPty` | pipe path with reader thread, pty path with prompt detection |
| `run_live`, `run_live_pty` | `RunLive::Run`, `RunLive::RunPty` | pipe path with reader thread, pty path with prompt detection; `RunInterrupted` on Ctrl-C when `allow_interrupt` (foreground only), child group killed |
| `KeyboardInterrupt` out of `run_live` | `RunInterrupted` (runlive.h) | converted to `TurnInterrupted` by `AgentReplHost::run_turn`, so the REPL prints `interrupted` and checkpoints |
| `RUN_CTRL_RE`, `RUN_PROMPT_RE` | `RunLive::StripControl`, `RunLive::LooksLikePrompt` | hand-written scanners, same alternation |
| `PtyProc` | `PtyProc` | posix_openpt, TIOCSCTTY, TIOCSWINSZ, poll reader, echo probe |
| `subprocess.Popen/run`, `shutil.which` | `Popen`, `Subprocess::Run`, `Subprocess::Which` (proc.h) | errno reporting through a CLOEXEC pipe, Python `OSError`/`TimeoutExpired` texts |
@@ -75,6 +76,6 @@ it. Replacements are listed in wiring/shell.md.
was not verified.
- `Sandbox::EnsureBox` image build and the opencode install were exercised only against a scripted fake engine, not
a real multi-minute podman build.
- `ShellIo::Ask` REPL fallback: Ctrl-C during the question is not mapped to a decline (tai.py maps
`KeyboardInterrupt`); the REPL owner decides signal handling.
- `ShellIo::Ask` REPL fallback: Ctrl-C/EOF during the question maps to a decline through the shared fd-0 reader,
like tai.py maps `KeyboardInterrupt`/`EOFError` (decline sends end-of-file to the command).
- `BackendError` here is `detz::shell::BackendError`; the agent core converts it at the call site.