From 2dda9803baad12299b2336c58194c2d424d235ef Mon Sep 17 00:00:00 2001
From: "J.A.R.V.I.S." <jarvis@adrianhomelab.com>
Date: Thu, 4 Jun 2026 22:17:52 +0300
Subject: [PATCH] fix: configurable terminal output truncation to prevent
 context blowup

Root cause: fix_full_output() had hardcoded 1M char threshold (~250K tokens).
A grep through minified JS produced 1MB output, exceeding LLM context limits.

Changes:
- Add max_output_chars config (default: 30000 chars ~ 7.5K tokens)
- Patch fix_full_output() to read from plugin config
- Add max_output_chars to _get_config()

Also patched usr/plugins/tree_sitter (local, gitignored) with
.gitignore awareness + default ignore dirs for build_index.
---
 plugins/_code_execution/default_config.yaml          | 3 +++
 plugins/_code_execution/tools/code_execution_tool.py | 5 ++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/plugins/_code_execution/default_config.yaml b/plugins/_code_execution/default_config.yaml
index 4858a65b28..8cc4f56265 100644
--- a/plugins/_code_execution/default_config.yaml
+++ b/plugins/_code_execution/default_config.yaml
@@ -37,3 +37,6 @@ dialog_patterns: |
   yes/no
   :\s*$
   \?\s*$
+
+# Maximum terminal output size in characters before truncation (default: 30000 ≈ ~7.5K tokens)
+max_output_chars: 30000
diff --git a/plugins/_code_execution/tools/code_execution_tool.py b/plugins/_code_execution/tools/code_execution_tool.py
index 7441001d61..5e8424bf68 100644
--- a/plugins/_code_execution/tools/code_execution_tool.py
+++ b/plugins/_code_execution/tools/code_execution_tool.py
@@ -472,7 +472,9 @@ def get_heading_from_output(self, output: str, skip_lines=0, done=False):
 
     def fix_full_output(self, output: str):
         output = re.sub(r"(?<!\\)\\x[0-9A-Fa-f]{2}", "", output)
-        output = truncate_text_agent(agent=self.agent, output=output, threshold=1000000)
+        cfg = _get_config(self.agent)
+        max_chars = cfg.get("max_output_chars", 30000)
+        output = truncate_text_agent(agent=self.agent, output=output, threshold=max_chars)
         return output
 
     async def ensure_cwd(self) -> str | None:
@@ -550,6 +552,7 @@ def _get_config(agent) -> dict:
         "output_timeouts": _parse_timeouts(cfg, "output", (120, 60, 600, 5)),
         "prompt_patterns": _parse_patterns(cfg.get("prompt_patterns", "")),
         "dialog_patterns": _parse_patterns(cfg.get("dialog_patterns", ""), re.IGNORECASE),
+        "max_output_chars": int(cfg.get("max_output_chars", 30000)),
     }