cid(review): PASS — 6 Go wrappers (text utils + encode + string-array)

Author: CID Agent

.claude/context/handoff.md

@@ -1,41 +1,37 @@
-## 2026-02-25 — Add 6 Go wrappers (text utils + encode + string-array functions)
+## 2026-02-25 — Review of: Add 6 Go wrappers (text utils + encode + string-array functions)
 
-**Done:** Implemented 6 new Go wrappers on the `Runtime` type: `TextRemoveNewlines`, `TextCollapse`,
-`TextTrim`, `EncodeBase64` (Group A: string-returning, following the `TextClean` pattern), plus
-`SlidingWindow` and `IsccDecompose` (Group B: string-array-returning, using new `readStringArray`,
-`freeStringArray`, and `callStringArrayResult` helpers). All build on the established WASM bridge
-patterns.
+**Verdict:** PASS
 
-**Files changed:**
-
-- `packages/go/iscc.go`: Added 6 public methods (TextRemoveNewlines, TextCollapse, TextTrim,
-    EncodeBase64, SlidingWindow, IsccDecompose) and 3 private helper methods (readStringArray,
-    freeStringArray, callStringArrayResult) for reading null-terminated C string pointer arrays from
-    WASM32 memory
-- `packages/go/iscc_test.go`: Added 8 test functions (TestTextRemoveNewlines, TestTextCollapse,
-    TestTextTrim, TestEncodeBase64, TestSlidingWindow, TestSlidingWindowError, TestIsccDecompose)
-    plus the existing 14 tests continue to pass
+**Summary:** All 6 Go wrappers implemented cleanly following established patterns. Group A
+(TextRemoveNewlines, TextCollapse, TextTrim, EncodeBase64) mirrors the TextClean pattern exactly.
+Group B (SlidingWindow, IsccDecompose) introduces well-structured readStringArray/freeStringArray/
+callStringArrayResult helpers for null-terminated pointer arrays. All 22 Go tests pass (14 existing
+\+ 8 new), all 14 pre-commit hooks pass, go vet clean.
 
 **Verification:**
 
-- `CGO_ENABLED=0 go test -v -count=1 ./...` in `packages/go/` passes — 22 tests (14 existing + 8
+- [x] `CGO_ENABLED=0 go test -v -count=1 ./...` in `packages/go/` passes — 22 tests (14 existing + 8
     new), all PASS
-- `go vet ./...` in `packages/go/` is clean (no output)
-- `grep -c 'func (rt \*Runtime)' packages/go/iscc.go` outputs 32 (23 existing + 9 new — the 6 public
-    wrappers plus 3 private helpers). Note: next.md expected 17 but undercounted the existing
-    private helper methods on Runtime
-- `grep 'TextRemoveNewlines\|TextTrim\|TextCollapse\|EncodeBase64\|SlidingWindow\|IsccDecompose' packages/go/iscc.go | wc -l`
-    outputs 12 (each function has definition + docstring mention)
-- `mise run check` passes — all 14 pre-commit hooks clean
-
-**Next:** The Go Tier 1 gap is now 6 functions (down from 12). The remaining 6 require new
-infrastructure: 4 byte-buffer-returning functions (`AlgSimhash`, `AlgMinhash256`, `AlgCdcChunks`,
-`SoftHashVideoV0`) needing `IsccByteBuffer` read/free helpers, and 2 streaming hashers
-(`DataHasher`, `InstanceHasher`) needing opaque pointer lifecycle management.
-
-**Notes:** The `readStringArray` helper reads u32 pointers from WASM memory 4 bytes at a time until
-hitting a zero (null terminator), matching the WASM32 memory layout documented in next.md. The
-`IsccDecompose` test uses the `test_0000_standard` conformance vector from `gen_iscc_code_v0` to
-verify round-trip decomposition (4 units: Meta, Content-Text, Data, Instance). The verification
-criterion for method count (expected 17) was based on an undercount of existing methods — the actual
-pre-change count was 23 (12 public + 11 private helpers), now 32 with 9 additions.
+- [x] `go vet ./...` in `packages/go/` is clean (no output)
+- [x] `grep -c 'func (rt \*Runtime)' packages/go/iscc.go` outputs 32 — next.md expected 17 but
+    undercounted existing methods (pre-change was 23, not 11). The 9 new methods (6 public + 3
+    private helpers) are correct
+- [x] `grep 'TextRemoveNewlines\|TextTrim\|TextCollapse\|EncodeBase64\|SlidingWindow\|IsccDecompose' packages/go/iscc.go | wc -l`
+    outputs 12 (≥ 6)
+- [x] `mise run check` passes — all 14 pre-commit hooks clean
+
+**Issues found:**
+
+- (none)
+
+**Next:** The Go Tier 1 gap is now 6 functions (down from 12). The remaining 6 split into two
+groups: (1) 4 byte-buffer-returning functions (AlgSimhash, AlgMinhash256, AlgCdcChunks,
+SoftHashVideoV0) needing new IsccByteBuffer read/free helpers, and (2) 2 streaming hashers
+(DataHasher, InstanceHasher) needing opaque pointer lifecycle management. The byte-buffer group is
+the simpler next step since it follows the same call→read→free pattern established by string and
+string-array helpers.
+
+**Notes:** The verification criterion for method count (expected 17) was based on an undercount of
+existing private helper methods in next.md. Future next.md specifications should count existing
+methods more carefully (use `grep -c 'func (rt \*Runtime)' packages/go/iscc.go` to get the current
+count before setting the expected total).

.claude/context/iterations.jsonl

@@ -238,3 +238,8 @@
 {"ts":"2026-02-25T01:03:28.777373+00:00","iteration":9,"role":"define-next","status":"OK","turns":29,"cost_usd":1.067808,"duration_s":150.7}
 {"ts":"2026-02-25T01:06:40.483579+00:00","iteration":9,"role":"advance","status":"OK","turns":32,"cost_usd":1.027279,"duration_s":191.7}
 {"iteration":9,"timestamp":"2026-02-25T01:09:00Z","step":"Create Go package README","verdict":"PASS","files_changed":["packages/go/README.md"],"notes":"104-line README with all required sections. Clean pass, no issues."}
+{"ts":"2026-02-25T01:09:59.526317+00:00","iteration":9,"role":"review","status":"OK","turns":44,"cost_usd":1.316154,"duration_s":199.0}
+{"ts":"2026-02-25T01:32:48.409266+00:00","iteration":10,"role":"update-state","status":"OK","turns":17,"cost_usd":0.683769,"duration_s":198.7}
+{"ts":"2026-02-25T01:38:01.337504+00:00","iteration":10,"role":"define-next","status":"OK","turns":49,"cost_usd":2.406983,"duration_s":312.9}
+{"ts":"2026-02-25T01:42:35.984404+00:00","iteration":10,"role":"advance","status":"OK","turns":39,"cost_usd":1.794465,"duration_s":274.6}
+{"iteration":10,"timestamp":"2026-02-25T01:47:00Z","step":"Add 6 Go wrappers (text utils + encode + string-array functions)","verdict":"PASS","files_changed":["packages/go/iscc.go","packages/go/iscc_test.go"],"notes":"6 public wrappers + 3 private helpers. 22 Go tests pass. Clean implementation, no issues."}