Docs give a look miss's real words, that event is one reader's, the real cap on held reads, Dump's Restore word, a reused command pane's runs, and the one-write trap

fs.md's look misses now read as the editor says them (<path>:99 has no
line 99, has no page N); event says a second reading open fails file in
use; held reads say the 64 state-holding opens are the real cap, under
the 128 a connection may park; Dump says it adds a Restore word to the
workspace tag; a reused command pane's body is said to keep each run
under a % line, with how to take the last. The 9P skill gains the trap
that bash's printf to a mounted ctl arrives one write per line.

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

1 files changed, 4 insertions, 0 deletions

diff --git a/.agents/skills/pardes-9p/SKILL.md b/.agents/skills/pardes-9p/SKILL.md
index 85f26ca5..83675b74 100644
--- a/.agents/skills/pardes-9p/SKILL.md
+++ b/.agents/skills/pardes-9p/SKILL.md
@@ -128,6 +128,10 @@ every connection is cut: dial again and restart the mount.
 - A word no builtin knows is a shell command (`exit 127` if a typo).
 - `lock` needs a held fd: `exec 3>$p/ctl; echo lock >&3; ...; exec 3>&-`.
 - plan9port `9p write` truncates: it replaces a whole `body`.
+- Through a mount, bash's `printf 'a\nb\n' > ctl` arrives one write per
+  line, so a block that should be refused whole runs its good lines before
+  the bad one fails. Send a multi-line block as one write: `cat block >
+  "$p/ctl"`.
 
 ## No mount: the Python client