1 files changed, 46 insertions, 0 deletions
diff --git a/modules/test/test-tool-context-bound.js b/modules/test/test-tool-context-bound.js
index 8cf2a5e..0b42eeb 100644
--- a/modules/test/test-tool-context-bound.js
+++ b/modules/test/test-tool-context-bound.js
@@ -85,6 +85,52 @@ function ok(name, cond, detail) {
     ok('D1 small tool results stay verbatim', messages[1].content === 'small result', messages[1].content);
 }
 
+// E. MAINT-023b: the clip must preserve envelope keys. A read_file page is a JSON string;
+// clipping it blind deletes `truncated` and `next_offset`, so the model cannot page.
+{
+    const ai = mk();
+    const page = JSON.stringify({
+        path: '/big.txt', offset: 0, returned: 16000, total_chars: 40000,
+        truncated: true, next_offset: 16000,
+        content: 'x'.repeat(16000),
+    });
+    const clipped = ai._clipToolResult(page);
+    let parsed = null;
+    try { parsed = JSON.parse(clipped); } catch (e) {}
+    ok('E1 clip keeps JSON parseable', !!parsed, clipped.slice(-80));
+    ok('E2 clip keeps next_offset', parsed && parsed.next_offset === 16000);
+    ok('E3 clip keeps truncated flag', parsed && parsed.truncated === true);
+    ok('E4 clip shortens content', parsed && parsed.content.length < 16000 && parsed.content.length >= 3000,
+       parsed && String(parsed.content.length));
+    ok('E5 clipped envelope fits the limit', clipped.length <= 6000 + 400, String(clipped.length));
+}
+
+// F. budgets are resolvable per model class, with precedence call arg > profile > ai-config > default
+{
+    let PROF = null, profErr = '';
+    try { PROF = require(path.join(__dirname, '..', 'core', 'model-profiles.js')); } catch (e) { profErr = e.message; }
+    ok('F0 model-profiles.js loads', !!PROF, profErr);
+    const ai = mk();
+    ai.modelProfiles = PROF;
+    ai.terminal.ollamaManager = { currentModel: 'gemma4:31b-cloud' };
+    ok('F1 cloud profile read page', ai._toolLimit('readPageChars') === 32000, String(ai._toolLimit('readPageChars')));
+    ai.terminal.ollamaManager.currentModel = 'qwen3:0.6b';
+    ok('F2 tiny profile read page', ai._toolLimit('readPageChars') === 4000, String(ai._toolLimit('readPageChars')));
+    ai.terminal.ollamaManager.currentModel = 'llama3.1:8b';
+    ok('F3 small profile result clip', ai._toolLimit('toolResultChars') === 4000, String(ai._toolLimit('toolResultChars')));
+    ai.maxToolResultChars = 1234;
+    ok('F4 ai-config overrides the model default', ai._toolLimit('toolResultChars') === 1234, String(ai._toolLimit('toolResultChars')));
+    // an id with no size token is unclassifiable -> mid; "unknown:1b" is NOT unknown, it is a 1B model
+    ok('F5 unclassifiable model falls back to mid', (function () {
+        ai.terminal.ollamaManager.currentModel = 'mystery-model';
+        return ai._toolLimit('readPageChars') === 16000;
+    })());
+    ok('F6 a 1b id is classified tiny, not mid', (function () {
+        ai.terminal.ollamaManager.currentModel = 'unknown:1b';
+        return ai._toolLimit('readPageChars') === 4000;
+    })());
+}
+
 if (fails === 0) {
     console.log('test-tool-context-bound: ' + passes + ' passed, 0 failed');
 } else {