# D-1 Verification Report

**Date:** 2026-03-29
**Branch:** culurien

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## PART 1: BUILD & TEST

### Builds
- **Linux AMD64 agent**: PASS
- **Linux AMD64 server**: PASS

### Test Counts
- Agent: system(7) + client(2) + logging(2) + scanner(19) + internal(4) + circuitbreaker(3) + crypto(14) = **51 tests**
- Server: middleware(12) + handlers(17) + database(9) + migrations(10) + queries(3) + services(4) = **55 tests**
- **Total: 106 tests, all PASS, 0 FAIL, 0 SKIP**

### D-1 State-Change Confirmation
All 6 FAIL-NOW tests flipped to PASS. All 9 PASS-NOW tests updated correctly.

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## PART 2: REGISTRATION FALLBACK (F-D1-1) — PASS

- NO `"unknown-"` string in registration path (grep: zero matches in main.go)
- Only machine ID source: `system.GetMachineID()`
- Failure: `log.Fatalf("[ERROR] [agent] [registration] machine_id_unavailable...")` — clean abort
- Format consistency: both registration and runtime call `system.GetMachineID()` → both get SHA256 hex
- No divergence possible in fixed code

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## PART 3: REBIND ENDPOINT (F-D1-2) — PASS

- Route: `POST /api/v1/admin/agents/:id/rebind-machine-id` (main.go:604)
- Auth: admin group (WebAuthMiddleware + RequireAdmin)
- Input validation: exactly 64 chars, lowercase hex [0-9a-f] only
- Uppercase hex → 400 rejected (not normalized — consistent with GetMachineID output)
- Audit: `[INFO] [server] [admin] agent_machine_id_updated agent_id=%s old_id=%s new_id=%s admin_user=%s`
- UpdateMachineID uses parameterized query (`$1`, `$2`)

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## PART 4: DEAD CODE DELETION (F-D1-3) — PASS

- `example_integration.go`: file not found (deleted)
- Zero references remain in codebase
- Logging package compiles cleanly

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## PART 5: WINDOWS REDUNDANT RETRY (F-D1-4) — PASS

- `getWindowsMachineID()` no longer calls `machineid.ID()` (grep: zero in function body)
- Falls through directly to `generateGenericMachineID()` which produces SHA256 hash
- Windows reinstall comment present with rebind endpoint reference

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## PART 6: LOGGING FORMAT (F-D1-5) — PASS

- `fmt.Printf` in client.go: only at line 94 (event buffer, NOT machine ID)
- Machine ID error uses `log.Printf("[WARNING] [agent] [client] machine_id_error...")`
- `log` import present, `fmt` retained for other uses

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## PART 7: EDGE CASES

- **Existing "unknown-" agents**: Will be locked out on upgrade. Migration guide in D1_Fix_Implementation.md covers this with SQL query and rebind instructions.
- **Runtime GetMachineID failure**: client.go sets `machineID = ""` → server rejects with 403 "missing machine ID header" → agent can't check in but doesn't crash. Operator must fix underlying machine ID issue.
- **Rebind uppercase hex**: Rejected with 400 (lowercase only). Consistent with `hashMachineID()` output which is lowercase.

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## PART 8: ETHOS COMPLIANCE

- [x] Registration abort: `[ERROR] [agent] [registration]`
- [x] Client error: `[WARNING] [agent] [client]`
- [x] Rebind audit: `[INFO] [server] [admin]`
- [x] No emojis in modified files
- [x] Rebind behind WebAuthMiddleware + RequireAdmin
- [x] Input validation prevents malformed IDs
- [x] Registration fails cleanly
- [x] GetMachineID() is idempotent
- [x] No banned words

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## PART 9: PRE-INTEGRATION CHECKLIST

- [x] Linux AMD64 builds pass
- [x] All 106 tests pass, zero regressions
- [x] All 6 D-1 FAIL-NOW tests now PASS
- [x] "unknown-" fallback removed
- [x] Registration aborts on failure
- [x] client.go logs warning (not empty string crash)
- [x] Rebind endpoint with admin auth and validation
- [x] Audit logging with old + new IDs
- [x] example_integration.go deleted
- [x] Windows retry removed
- [x] Windows reinstall documented
- [x] fmt.Printf replaced in client.go
- [x] Operator migration guide complete
- [x] ETHOS compliant

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## ISSUES FOUND

None. All 5 D-1 fixes verified correct.

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## GIT LOG

```
db67049 fix(identity): D-1 machine ID deduplication fixes
2c98973 test(machineid): D-1 pre-fix tests for machine ID duplication bugs
8530e6c docs: D-1 machine ID duplication audit
a1df7d7 refactor: C-series cleanup and TODO documentation
1b2aa1b verify: C-1 Windows bug fixes verified
8901f22 fix(windows): C-1 Windows-specific bug fixes
38184a9 test(windows): C-1 pre-fix tests for Windows-specific bugs
799c155 docs: C-1 Windows-specific bugs audit
```

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## FINAL STATUS: VERIFIED
