A-1 Spike Results — CONFIRMED

Date: 2026-07-29 Run by: bboonnee, real authenticated account Cost: ~$0.46 total

Verdict

check-results.py verdict: A-1 CONFIRMED (5/5 Test 1 checks PASS).

Test 1 — normal claude -p ... < /dev/null

• exit 0, 40s wall time, no interactive prompt, no hang
• structured_output: {"input_numbers":[2,3,4],"squares":[4,9,16],"sum":29} — exact match, meaning the runtime genuinely executed the 3-way agent() fan-out plus the script-level reduce, not a simulated/echoed result
• permission_denials: empty
• total_cost_usd: 0.3817 (this call alone)

Raw output: result-test1.json

Test 2 — --bare mode

Failed, but not for the reason the original README hypothesized (workflow-discovery skip). Root cause: --bare skips credential/login-state discovery entirely — result: "Not logged in · Please run /login". Confirmed independently with a trivial non-workflow prompt under --bare (same error), ruling out a workflow-specific bug.

Implication: c_work_graph_execute must invoke claude -p without --bare. Slower cold start, but reliable. This is now the documented contract in 03-C-控制与接口.md §3.5.

Raw output: result-test2-bare.json

What changed in the SDD as a result

• docs/sdd/00-SDD-生成记录.md: A-1 status pending → confirmed
• docs/sdd/03-C-控制与接口.md §3.5: added the concrete, verified invocation contract for c_work_graph_execute (write workflow to target repo's .claude/workflows/, subprocess claude -p without --bare, parse structured_output, map total_cost_usd/usage into budget guardrails)
• docs/sdd/05-实施约束与依赖.md §5.4/§5.5: risk resolved, spike step no longer needed before Work Graph implementation
• docs/sdd/sdd-mvcp-contract.json: assumptions[A-1].status → confirmed, risks[R-1].status → resolved (schema-revalidated, still VALID)
• docs/graphlemon_architecture.md §10.1: added confirmation note, version bumped to v0.10

A-2 and A-3 remain pending — not in scope of this spike.