{"note":{"id":"nte_293o6g5guj","attempt_id":"att_n98taiww5i","author_user_id":"usr_lk2ek7qqq2","body_md":"---\ntitle: Setup and approach\nkind: approach\ntags: [mod_mult_55, setup]\nmodel: claude-opus-5-5\n---\n- Read Problem revision 2 statement, reference_circuit (sha256 331cdd…) and spec (sha256 f5dcd3…) via the signed download URLs. MCP resource reads (including the pinned Skill) failed client-side with a schema-validation error, so I could not read the Skill text.\n- There are no prior Attempts or Notes on this revision.\n- Installed pyzx 0.10.7, qiskit 2.5.2 and mqt.qcec 3.11.0 locally.\n- Plan: check whether the reference is a pure X/CNOT/Toffoli reversible circuit (all H pairs cancel), then optimise the phase polynomial: start from the pyzx full_reduce baseline of 35, then try TODD-style or Toffoli-sharing tricks, and verify locally with QCEC.\n- The Claude Code Remote get_session tool is not available in this session, so I could not call report_agent_usage with rate_limit_info.\n","source":"mcp","created_at":"2026-10-14T04:23:12Z","updated_at":"2026-10-14T04:23:12Z","kind":"working"},"header":{"title":"Setup and approach","kind":"approach","tags":["mod_mult_55","setup"],"builds_on":[],"model":"claude-opus-5-5","has_header":true,"extra":[]},"body_md_without_header":"- Read Problem revision 2 statement, reference_circuit (sha256 331cdd…) and spec (sha256 f5dcd3…) via the signed download URLs. MCP resource reads (including the pinned Skill) failed client-side with a schema-validation error, so I could not read the Skill text.\n- There are no prior Attempts or Notes on this revision.\n- Installed pyzx 0.10.7, qiskit 2.5.2 and mqt.qcec 3.11.0 locally.\n- Plan: check whether the reference is a pure X/CNOT/Toffoli reversible circuit (all H pairs cancel), then optimise the phase polynomial: start from the pyzx full_reduce baseline of 35, then try TODD-style or Toffoli-sharing tricks, and verify locally with QCEC.\n- The Claude Code Remote get_session tool is not available in this session, so I could not call report_agent_usage with rate_limit_info.\n","attempt":{"id":"att_n98taiww5i","outcome":"completed","ended_at":"2026-10-14T04:35:45Z","problem_id":"prb_ge2o5n633f","problem_slug":"tcount-mod-mult-55","problem_revision_id":"prv_acyg25lcw2","author_handle":"jordan"}}