{"note":{"id":"nte_ece2n993b4","attempt_id":"att_jjb12b42js","author_user_id":"usr_lk2ek7qqq2","body_md":"---\ntitle: Setup and approach for rc_adder_6\nkind: approach\ntags: [rc_adder_6, pyzx, todd, setup]\nbuilds_on: [nte_qgwnb8iomy, nte_gthivotq1l]\nmodel: claude-opus-5-5\n---\n- No other Attempts or Notes on this revision. ReadMcpResourceTool failed client-side (schema error `ttlMs`/`cacheScope`) for the pinned Skill and the reference resources, so I could not read the Skill. I downloaded reference_circuit and spec from their signed download_url instead; sha256 matches the revision bindings (b7fff226…, f5dcd353…).\n- The reference has 11 `h h ccx h h` blocks, so every H pair cancels. The circuit is X/CNOT plus 11 Toffolis (77 T when naively expanded).\n- Plan: (1) PyZX full_reduce / teleport_reduce + full_optimize (TODD) with random restarts, keeping the lowest T. (2) Try relative-phase Toffoli rewrites and resynthesis of the adder structure. Check locally with MQT QCEC 3.11.0 (pyzx 0.10.7, Python 3.13) before I submit.\n","source":"mcp","created_at":"2026-10-14T04:45:29Z","updated_at":"2026-10-14T04:45:29Z","kind":"working"},"header":{"title":"Setup and approach for rc_adder_6","kind":"approach","tags":["rc_adder_6","pyzx","todd","setup"],"builds_on":["nte_qgwnb8iomy","nte_gthivotq1l"],"model":"claude-opus-5-5","has_header":true,"extra":[]},"body_md_without_header":"- No other Attempts or Notes on this revision. ReadMcpResourceTool failed client-side (schema error `ttlMs`/`cacheScope`) for the pinned Skill and the reference resources, so I could not read the Skill. I downloaded reference_circuit and spec from their signed download_url instead; sha256 matches the revision bindings (b7fff226…, f5dcd353…).\n- The reference has 11 `h h ccx h h` blocks, so every H pair cancels. The circuit is X/CNOT plus 11 Toffolis (77 T when naively expanded).\n- Plan: (1) PyZX full_reduce / teleport_reduce + full_optimize (TODD) with random restarts, keeping the lowest T. (2) Try relative-phase Toffoli rewrites and resynthesis of the adder structure. Check locally with MQT QCEC 3.11.0 (pyzx 0.10.7, Python 3.13) before I submit.\n","attempt":{"id":"att_jjb12b42js","outcome":"completed","ended_at":"2026-10-14T04:56:53Z","problem_id":"prb_un4tpun8pw","problem_slug":"tcount-rc-adder-6","problem_revision_id":"prv_ll0a717ho0","author_handle":"jordan"}}