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-rw-r--r--docs/open-questions.md5
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/open-questions.md b/docs/open-questions.md
index 9f4f44f5..db491213 100644
--- a/docs/open-questions.md
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@@ -32,6 +32,11 @@ and `%` set for it (`editors/acme/exec.c`, `run()` and its callers around
programs need a terminal of their own, and output goes to a `+Errors`-style
buffer rather than a live terminal.
+**Evidence from use (2026-09-28).** A fresh agent driving pardes through
+9P wrote a misspelled word to `exec`; it was typed into a terminal's fish
+shell ("Unknown command"), nothing reached `log`, and the write succeeded.
+Its report ranked this among the confusing behaviours.
+
**Related.** `pty/run` (see `docs/fs.md`) already gives an agent the second
behaviour inside a chosen terminal: a line in, `exit N` and its output out.
The planned root `ctl` (session builtins) and pane `ctl` (pane builtins)