eca shell command tool call does not return stderr

[quackercrumbs]

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Describe the bug
When the eca shell command runs a command that only outputs stderr, the results aren't visible in the tool preview / the chat session.

To Reproduce
I'm using eca-nvim and have clj-nrepl-eval setup.

Steps to reproduce the behavior:

1. Send message Hello can you run: clj-nrepl-eval -p 7888 --timeout 10000 "blah"
2. LLM responds that there was no output and check tool preview
3. Send message Hello can you run: clj-nrepl-eval -p 7888 --timeout 10000 "blah" 2>&1
4. LLM responds that it sees an error and check tool preview

Expected behavior
Tool Result should contain stderr output

Doctor
Paste the relevant parts of /doctor command from chat if applicable:

> /doctor

ECA version: 0.91.1

Server cmd: /Users/calvinquach/.cache/nvim/eca/eca server

Workspaces: /Users/calvinquach/projects/eca-nvim

Default model: anthropic/claude-sonnet-4.5

Screenshots

Additional context
Add any other context about the problem here.
Maybe related issue? #219

[ericdallo]

@quackercrumbs we do respond with the stderr for custom tools here, and eca shell command here, did you try with custom tools as well? like here

[quackercrumbs]

@ericdallo Thanks for the speedy reply!

I haven't tried out custom tools, i'll try it later today and report back!

Looking at the code reference you shared, it seems like clj-nrepl-eval returns a status of 0 even when there is output to stderr, so it might be going in the previous cond branch, which only returns the out

• eca/src/eca/features/tools/shell.clj

  Lines 102 to 105 in b9f5584

  	(zero? (:exit result))
  	(do (logger/debug logger-tag "Command executed:" result)
  	(tools.util/single-text-content (:out result)))

⋊> ~/projects clj-nrepl-eval -p 7888 --timeout 10000 "blah" 2>err.txt                                                                                                                                                                                          11:52:22
⋊> ~/projects echo $status                                                                                                                                                                                                                                     11:52:24
0
⋊> ~/projects cat err.txt                                                                                                                                                                                                                                      11:52:26
Syntax error compiling at (REPL:0:0).
Unable to resolve symbol: blah in this context
⋊> ~/projects

[ericdallo]

Hum, good catch! I remember it was on purpose I did that afraid that some CLI commands could output lots of noise even for succeeding tasks, but on a second thought I'm not sure that's ECA's fault and LLM can always supress with flags, I will change that

[ericdallo]

Fixed on 0.91.2!

[quackercrumbs]

So fast! TY!