One rule for failing builtins: the write fails, one err, no msg

A builtin that failed through a ctl failed the write and logged its err,
but through look, exec, tagexec or a column's exec it only said so on the
message row, logged as a msg, and the write succeeded. Now every click
write runs its builtin as a ctl line does (ctl.captured): a failure fails
the write, with its words (EINVAL for malformed input, else EIO or what
the words name), logs one err and no msg or announcement. get's Modified
and a look miss are shown but logged once, as their err. A control
character's refusal names its reason, a failed click reads back nothing,
and look never reads back a pane closed since. The special case for a
cut-short Edit through exec goes (the rule covers it); fs.md's table of
exceptions becomes the one rule, as does the skill.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/Messages.zig b/src/Messages.zig
index 7970908e..d8aeea0c 100644
--- a/src/Messages.zig
+++ b/src/Messages.zig
@@ -487,7 +487,8 @@ pub fn clip(text: []const u8, max: usize) []const u8 {
 pub fn reportFailure(p: *Pardes, id: usize, text: []const u8) void {
     // A builtin a ctl write runs: its first error is also the write's, cut
     // between words.
-    if (p.fs.no_prompt and p.fs.failure_len == 0) {
+    const failing_write = p.fs.no_prompt or p.fs.capturing;
+    if (failing_write and p.fs.failure_len == 0) {
         const kept = if (text.len > p.fs.failure.len) clip(text, p.fs.failure.len - 3) else text;
         @memcpy(p.fs.failure[0..kept.len], kept);
         var n = kept.len;
@@ -500,7 +501,7 @@ pub fn reportFailure(p: *Pardes, id: usize, text: []const u8) void {
     // The write fails with it, and its err record says it: no msg for it,
     // and no Verbose announcement before that, so the same failure again is
     // the same record again, counted (events.pushCounting).
-    if (p.fs.no_prompt) {
+    if (failing_write) {
         const serial: u32 = if (p.fs.session_write) 0 else if (id < MAX_PANES) if (p.panes[id]) |pane| pane.serial else 0 else 0;
         ctlfs.events.dropAnnouncement(p, serial, text);
         p.fs.unlogged = true;