Models stage-d (default) + stage-e (next-edit companion); extension 0.6.1

- stage-d: next-line / block-close / multi-line fixes, symbols format 2, TS errors in the header.
  Held-out: 0.426 exact / 0.700 edit sim (stage-c 0.405 / 0.689); block close 0.27 -> 0.79.
- stage-e: next-edit (80% exact region rewrites, abstains on 100% of no-edit samples).
- Manifest: nextEditModel (companion) and nextEditFormat (older extensions ignore it, so they
  never use next-edit with the empty-output deletion bug).
- Daemon: next-edit served by the companion model in a second llama-server, started after the
  main model loads.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J39imRDT8L7xYbWzsVWd8A

scripts/make-model-release.mjs

@@ -23,9 +23,10 @@ const out = path.join(repo, 'models')
 // Prompt layout each model was trained with (the extension only offers matching context modes).
 const profiles = {
   // Stage E: Stage D + next-edit prediction (shared/nextedit.ts)
-  'stage-e': { order: 'spm', modes: ['symbols', 'simple'], defaultMode: 'symbols', contextFormat: 2, errors: true, members: true, nextEdit: true, description: 'Suffix-first FIM with symbols + TS errors, plus next-edit prediction (rewrites a region around the cursor)' },
+  // nextEditFormat (not the old nextEdit flag): extensions ≤ 0.6.0 must not use it (they applied "no edit" as a deletion).
+  'stage-e': { order: 'spm', modes: ['symbols', 'simple'], defaultMode: 'symbols', contextFormat: 2, errors: true, members: true, nextEditFormat: 1, description: 'Next-edit prediction (rewrites a region around the cursor or answers "no edit"); also does FIM, slightly below stage-d' },
   // Stage D: next-line / block-close / multi-line fixes, namespace-import symbols (format 2), TS errors in the header
-  'stage-d': { order: 'spm', modes: ['symbols', 'simple'], defaultMode: 'symbols', contextFormat: 2, errors: true, members: true, description: 'Suffix-first FIM with symbols (incl. namespace imports) + TS errors; better next-line, block closing and multi-line completions' },
+  'stage-d': { order: 'spm', modes: ['symbols', 'simple'], defaultMode: 'symbols', contextFormat: 2, errors: true, members: true, nextEditModel: 'stage-e', description: 'Suffix-first FIM with symbols (incl. namespace imports) + TS errors; better next-line, block closing and multi-line completions' },
   'stage-c': { order: 'spm', modes: ['symbols', 'simple'], defaultMode: 'simple', description: 'Suffix-first FIM with repo/symbol-context headers (default)' },
   'stage-b': { order: 'spm', modes: ['raw'], defaultMode: 'raw', description: 'Suffix-first FIM without context headers (previous stage)' },
 }
@@ -71,7 +72,8 @@ fs.writeFileSync(path.join(out, 'NOTICE'), `These model files are modified versi
 Copyright (c) Alibaba Cloud, licensed under the Apache License, Version 2.0 (see LICENSE).
 
 Modifications: full-parameter fine-tuning for suffix-first fill-in-the-middle completion
-(and, for stage-c, a repository/symbol-context header), followed by Q8_0 GGUF conversion.
+(and, from stage-c on, a repository/symbol-context header; stage-d adds TypeScript errors; stage-e adds
+next-edit prediction), followed by Q8_0 GGUF conversion.
 Fine-tuning data: permissively licensed (MIT) open-source TypeScript/Vue repositories and
 the publisher's own code. Secrets were scrubbed from the training data.
 `)
@@ -103,6 +105,16 @@ runs it locally with llama.cpp. The files are stored with Git LFS; download link
 | Qwen2.5-Coder-1.5B (base) | 0.366 | 0.623 | 0.882 |
 | \`stage-b\` | 0.391 | 0.689 | 0.952 |
 | \`stage-c\` (with symbol context) | 0.397 | 0.681 | 0.954 |
+| \`stage-c\` + token healing (daemon default) | 0.405 | 0.689 | |
+| \`stage-d\` (symbols + TS errors, healed) | **0.426** | **0.700** | 0.954 |
+| \`stage-e\` (symbols + TS errors, healed) | 0.412 | 0.691 | 0.962 |
+
+New behaviours (886 further held-out samples), exact match, stage-c → stage-d: closing a block 0.27 → **0.79**,
+next line 0.01 → **0.18**, rest of block 0.08 → 0.11, member access 0.63 → 0.66.
+
+**Next-edit** (\`stage-e\`, 445 held-out samples): 80% exact region rewrites (edit similarity 0.99) where an edit
+was due, and "no edit" on 100% of samples where none was. \`stage-d\` uses \`stage-e\` as its next-edit companion
+(\`nextEditModel\` in the manifest): the extension downloads both and the daemon runs it in a second llama-server.
 
 The base models were evaluated in their native prefix-first order (they can't do suffix-first). Suffix-first prompts
 let the editor reuse the KV cache while typing: about 2 tokens re-processed per keystroke, ~90–100 ms end-to-end on a