cid(review): PASS — WASM alloc/dealloc helpers for wasm32-wasip1

Author: CID Agent

.claude/context/handoff.md

@@ -1,33 +1,33 @@
-## 2026-02-24 — Build iscc-ffi as wasm32-wasip1 module with alloc/dealloc helpers
+## 2026-02-24 — Review of: Build iscc-ffi as wasm32-wasip1 module with alloc/dealloc helpers
 
-**Done:** Added `iscc_alloc` and `iscc_dealloc` extern "C" functions to the FFI crate for WASM host
-memory management. The crate now compiles as a wasm32-wasip1 module, producing a ~10.5MB debug
-`.wasm` binary from the existing `cdylib` crate type.
+**Verdict:** PASS
 
-**Files changed:**
-
-- `crates/iscc-ffi/src/lib.rs`: Added `iscc_alloc(size) -> *mut u8` and `iscc_dealloc(ptr, size)`
-    under a `// --- Memory allocation helpers (for WASM host) ---` section, placed between
-    `clear_last_error` and `result_to_c_string`. Both use `#[unsafe(no_mangle)]` matching the
-    crate's edition 2024 style. `iscc_alloc` returns a dangling non-null pointer for `size == 0`.
-    `iscc_dealloc` guards against both null pointers and zero-size frees.
+**Summary:** The advance agent added `iscc_alloc` and `iscc_dealloc` helper functions to the FFI
+crate, enabling WASM host memory management for Go/wazero bindings. The implementation is clean,
+well-documented, correctly handles edge cases (null pointers, zero-size allocations), and compiles
+to a ~10.5MB wasm32-wasip1 module. All existing tests pass unchanged.
 
 **Verification:**
 
-- [x] `rustup target add wasm32-wasip1` succeeds
+- [x] `rustup target add wasm32-wasip1` succeeds (idempotent)
 - [x] `cargo build -p iscc-ffi --target wasm32-wasip1` compiles without errors
-- [x] `target/wasm32-wasip1/debug/iscc_ffi.wasm` exists (10,992,662 bytes)
+- [x] `ls target/wasm32-wasip1/debug/iscc_ffi.wasm` — file exists (10,992,662 bytes)
 - [x] `cargo test -p iscc-ffi` passes all 62 existing tests
 - [x] `cargo clippy -p iscc-ffi -- -D warnings` clean
 - [x] `grep 'fn iscc_alloc'` returns exactly 1 match
 - [x] `grep 'fn iscc_dealloc'` returns exactly 1 match
 - [x] `mise run check` passes all 14 pre-commit hooks
+- [x] No quality gate circumvention in diff
+
+**Issues found:**
+
+- (none)
 
-**Next:** The WASM module is ready for Go/wazero integration. The next step would be creating the
-`packages/go/` directory with the Go wrapper code that loads this `.wasm` module and calls the
-exported FFI functions through wazero.
+**Next:** Create the `packages/go/` directory with the Go module scaffold and wazero bridge. This is
+step 2 of the Go bindings multi-step plan: set up `go.mod`, embed the `.wasm` binary, and implement
+the wazero runtime initialization + basic memory helpers that call `iscc_alloc`/`iscc_dealloc`.
 
-**Notes:** No surprises. The existing `crate-type = ["cdylib", "staticlib"]` in Cargo.toml works
-without modification for WASM — cargo produces the `.wasm` from the `cdylib` target automatically.
-The debug binary is ~10.5MB; release + wasm-opt would reduce this significantly but is explicitly
-out of scope for this step.
+**Notes:** The existing `crate-type = ["cdylib", "staticlib"]` works without modification for WASM
+targets. The `thread_local!` macro in the FFI crate (for error storage) compiles for wasm32-wasip1
+since WASM is single-threaded. Debug binary is ~10.5MB; release + wasm-opt optimization is a
+separate future step.

.claude/context/iterations.jsonl

@@ -215,3 +215,7 @@
 {"ts":"2026-02-24T21:59:23.806600+00:00","iteration":4,"role":"define-next","status":"OK","turns":20,"cost_usd":0.748408,"duration_s":132.2}
 {"ts":"2026-02-24T22:02:11.872785+00:00","iteration":4,"role":"advance","status":"OK","turns":23,"cost_usd":0.88859,"duration_s":168.1}
 {"iteration":4,"timestamp":"2026-02-24T22:05:00Z","step":"Fix WASM alg_cdc_chunks silent null return","verdict":"PASS","files_changed":["crates/iscc-wasm/src/lib.rs","crates/iscc-wasm/tests/unit.rs"],"issues_resolved":["iscc-wasm: alg_cdc_chunks silently returns null on serialization failure"]}
+{"ts":"2026-02-24T22:05:00.628036+00:00","iteration":4,"role":"review","status":"OK","turns":27,"cost_usd":0.787507,"duration_s":168.8}
+{"ts":"2026-02-24T22:29:47.110177+00:00","iteration":5,"role":"update-state","status":"OK","turns":22,"cost_usd":0.847557,"duration_s":291.8}
+{"ts":"2026-02-24T22:40:00.839226+00:00","iteration":5,"role":"define-next","status":"OK","turns":24,"cost_usd":0.914843,"duration_s":613.7}
+{"ts":"2026-02-24T22:43:16.602920+00:00","iteration":5,"role":"advance","status":"OK","turns":29,"cost_usd":1.228289,"duration_s":195.8}