fix: add retry logic and checkpoint support for filter command

kompile/cli.py

@@ -137,7 +137,7 @@ def filter_cmd(ctx):
         click.echo(f"Filtering {len(unfiltered)} sources with {model}...")
 
         results = []
-        from kompile.models import Source
+        from kompile.models import Source, FilterResult
         for i, sid in enumerate(sorted(unfiltered), 1):
             src_file = raw_dir / f"{sid}.txt"
             if not src_file.exists():
@@ -155,12 +155,17 @@ def filter_cmd(ctx):
                 metadata=src_data.get("metadata", {}),
             )
 
-            result = filter_source(source, client, model)
+            try:
+                result = filter_source(source, client, model)
+            except ValueError as exc:
+                click.echo(f"  [{i}/{len(unfiltered)}] {source.title[:60]} → ✗ skip (parse error: {exc})", err=True)
+                result = FilterResult(source_id=source.id, keep=False, topics=[], summary=f"[filter error: {exc}]")
             results.append(result)
+            state_add_filter_results(state, [result])
+            save_state(root, state)
             status = "✓ keep" if result.keep else "✗ discard"
             click.echo(f"  [{i}/{len(unfiltered)}] {source.title[:60]} → {status} | {result.summary[:80]}")
 
-        state_add_filter_results(state, results)
         kept = sum(1 for r in results if r.keep)
         click.echo(f"\nFiltered {len(results)} sources: {kept} kept, {len(results)-kept} discarded.")
 
@@ -182,7 +187,7 @@ def filter_cmd(ctx):
 @click.pass_context
 def compile(ctx, incremental):
     """Run full tiered compilation pipeline → wiki/ directory."""
-    from kompile.models import Source, TieredWiki, SurfaceNote, Concept, Insight, Gap
+    from kompile.models import Source, TieredWiki, SurfaceNote, Concept, Insight, Gap, FilterResult
     from kompile.compiler.filter import filter_source
     from kompile.compiler.classify import classify_topics
     from kompile.compiler.summarize import summarize_source
@@ -219,12 +224,16 @@ def compile(ctx, incremental):
                 url=src_data.get("metadata", {}).get("url"),
                 metadata=src_data.get("metadata", {}),
             )
-            result = filter_source(source, client, cfg["models"]["filter"])
+            try:
+                result = filter_source(source, client, cfg["models"]["filter"])
+            except ValueError as exc:
+                click.echo(f"  ✗ skip {source.title[:60]} (parse error: {exc})", err=True)
+                result = FilterResult(source_id=source.id, keep=False, topics=[], summary=f"[filter error: {exc}]")
             results.append(result)
+            state_add_filter_results(state, [result])
+            save_state(root, state)
             status = "✓" if result.keep else "✗"
             click.echo(f"  {status} {source.title[:60]}")
-        state_add_filter_results(state, results)
-        save_state(root, state)
 
     # ------------------------------------------------------------------ #
     # Step 2: Classify topics (if not already done or new sources added)

kompile/compiler/filter.py

@@ -26,31 +26,43 @@ def filter_source(
         date=source.date,
         content=content,
     )
-    response = client.messages.create(
-        model=model,
-        max_tokens=1024,
-        system=FILTER_SYSTEM,
-        messages=[{"role": "user", "content": user_msg}],
-    )
-    data = parse_llm_json(response.content[0].text)
-    return FilterResult(
-        source_id=source.id,
-        keep=bool(data.get("keep", False)),
-        topics=data.get("topics", []),
-        summary=data.get("summary", ""),
-    )
+    last_exc: Exception | None = None
+    for attempt in range(3):
+        response = client.messages.create(
+            model=model,
+            max_tokens=1024,
+            system=FILTER_SYSTEM,
+            messages=[{"role": "user", "content": user_msg}],
+        )
+        try:
+            data = parse_llm_json(response.content[0].text)
+            if not isinstance(data, dict):
+                raise ValueError(f"expected dict, got {type(data).__name__}")
+        except ValueError as exc:
+            last_exc = exc
+            continue
+        return FilterResult(
+            source_id=source.id,
+            keep=bool(data.get("keep", False)),
+            topics=data.get("topics", []),
+            summary=data.get("summary", ""),
+        )
+    raise ValueError(f"filter_source failed after 3 attempts for {source.id!r}: {last_exc}")
 
 
 def filter_sources(
     sources: list[Source],
     client: anthropic.Anthropic,
     model: str,
     progress_cb: Callable[[int, int, FilterResult], None] | None = None,
+    checkpoint_cb: Callable[[FilterResult], None] | None = None,
 ) -> list[FilterResult]:
     results = []
     for i, source in enumerate(sources):
         result = filter_source(source, client, model)
         results.append(result)
+        if checkpoint_cb:
+            checkpoint_cb(result)
         if progress_cb:
             progress_cb(i + 1, len(sources), result)
     return results