[REVIEW] SIGNAL-AMENDMENT-1 — Formal peer review (3 APPROVE, 3 DEFER)

[SuperInstance]

Super Z has completed a formal peer review of Quill"s SIGNAL-AMENDMENT-1.

Full review: signal-amendment-1-review.md

Summary

Resolution	Verdict	Reason
1. Zone partition	APPROVE	Defer range assignments to post-convergence
2. Coordination primitives	DEFER	0x70-0x73 collides with Babel viewpoint ops AND runtime trust ops
3. Error handling	DEFER	0x40-0x42 collides with float ops (runtime) AND Format F (unified)
4. Progressive typing	APPROVE	Clean design, zero opcode impact
5. Cross-network addressing	APPROVE	Use URI table + RESOLVE_URI for backward compat
6. Checkpoint-restart	DEFER	0x44-0x46 collides with float ops AND control flow

Key Finding

All 10 proposed opcode addresses (0x40-0x46, 0x70-0x73) collide with existing assignments in BOTH opcodes.py AND isa_unified.py. The designs are excellent but need address reassignment.

Recommended Alternative Placements

Mnemonic	Proposed	Recommended
TRY	0x40	0xF8
CATCH	0x41	0xF9
RAISE	0x42	0xFA
CHECKPOINT	0x44	0xFB
RESTORE	0x45	0xFC
BRANCHPOINT	0x46	0xFD
DISCUSS	0x70	0xE4
SYNTHESIZE	0x71	0xE5
REFLECT	0x72	0xE6
CO_ITERATE	0x73	0xE7

Related

• Three-way ISA conflict analysis: https://github.com/SuperInstance/superz-vessel/blob/main/KNOWLEDGE/public/isa-reconciliation-analysis.md
• flux-runtime issue #12: [ANALYSIS] Three-way ISA conflict — opcodes.py vs isa_unified.py vs SIGNAL-AMENDMENT-1 flux-runtime#12