Run ID: 2026-04-24T11-40-34_magellan-pay-rerun
Plugin: magellan-pay v1.0.0 (same plugin as Pilot 5 orig)
Purpose: Validate that the 2 amendments shipped in commit 195db81 (Amendment G = DDL column types for value semantics; Amendment E extension = rapid-double-submit on customer-facing writes) close the 2 misses observed in original Pilot 5.
Driver: Chrome DevTools MCP with --experimental-page-id-routing
Dispatch: 6 charters in one concurrent wave (Sonnet-default Testers)
Wallclock: ~28 min (cleaner than Pilot 5 orig which ran ~60 min with recon + retries)
Recall: 9/10 strict, 10/10 lenient (up from 8/10 in Pilot 5 orig).
- Amendment G fired cleanly on 4 of 6 Testers — strongest single-amendment convergence in project history. Four independent Testers all caught Issue 5 (FLOAT for money) by reading the DDL + running the reproducer (
0.1 + 0.1 + 0.1 → 0.299999...). - Amendment E extension fired partially — one Tester raised the double-submit hypothesis and source-inspected for all four defenses (no JS file, no disable-on-click, no nonce idempotency, no server-side dedup). But it filed as a Question rather than a Problem because the Tester didn't execute the empirical
click(); click()reproducer. Classification drift — same pattern as Amendment C's Question-not-Problem fire on Pilot 4 rerun's Issue 4.
The loop is self-improving: the Pilot 5 rerun exposes a new rule-text weakness (Amendment E-ext is too soft — doesn't force the empirical probe). Proposed tightening below.
9/10 planted caught-exact/bundled + 14 bonus findings. 23 Problems, 5 Questions, 7 Improvements, 10 Praises.
Severity: 8 critical, 11 major, 4 minor, 0 trivial.
| Charter | Rerun P/Q/I/! | Orig P/Q/I/! | Duration |
|---|---|---|---|
| gateway-settings | 6 / 1 / 1 / 1 | 4 / 1 / 1 / 2 | 19m 00s |
| checkout-payment-flow | 5 / 2 / 2 / 2 | 6 / 1 / 3 / 3 | 26m 32s |
| refund-flow | 6 / 1 / 1 / 1 | 2 / 1 / 2 / 2 | 22m 26s |
| transaction-log-scale | 3 / 0 / 1 / 2 | 2 / 0 / 2 / 3 | 18m 25s |
| cross-feature-stock-refund | 2 / 1 / 2 / 1 | 3 / 1 / 3 / 1 | 24m 53s |
| transaction-log-admin | 1 / 0 / 0 / 3 | 1 / 1 / 1 / 3 | 16m 01s |
| Totals | 23 / 5 / 7 / 10 | 18 / 5 / 12 / 14 | 127m sequential |
Rerun's Problem count went up (23 vs 18) because (a) Amendment G found Issue 5 four times over, (b) refund-flow went deeper (6 vs 2 Problems, with three now filed as critical). The Improvements went down because many observations that would have been Improvements in orig were escalated to Problems under the tighter Amendment G rule.
| Issue | Pilot 5 orig | Pilot 5 rerun | Amendment fired |
|---|---|---|---|
| 5 — FLOAT for money | ✗ MISSED | ✓ caught-exact (×4 Testers) | Amendment G — spec-for-bug, strongest amendment convergence ever |
| 10 — double-click duplicate orders | ✗ MISSED | **~ caught-bundled as Question** | Amendment E extension — fired but filed as Question (classification drift) |
All 8 previously-caught issues stayed caught, most escalated in severity.
| Manager (Opus 4.7) | Subagents (Sonnet 4.6) | Total | |
|---|---|---|---|
| Agents | 1 | 6 Testers (no recon — reused site knowledge) | 7 |
| Messages | 68 | 693 | 761 |
| Fresh input | 218 | 729 | 947 |
| Output | 119,586 | 100,864 | 220,450 |
| Cache-create 5m | 0 | 1,387,940 | 1,387,940 |
| Cache-create 1h | 138,540 | 0 | 138,540 |
| Cache-read | 22,878,329 | 67,910,953 | 90,789,282 |
| Total tokens | 23,136,673 | 70,130,486 | 93,267,159 |
| Cost | $15.82 | $27.09 | $42.91 |
97.3% cache-read. Cheaper than Pilot 5 orig ($42.91 vs $53.93 — 20% savings) because the rerun skipped recon (reused Pilot 5's recon.md) and had no retry waste.
| Category | Tokens | Cost | % |
|---|---|---|---|
| Cache-read | 90,789,282 | $31.81 | 74.1% |
| Cache-create 5m | 1,387,940 | $5.20 | 12.1% |
| Output | 220,450 | $4.50 | 10.5% |
| Cache-create 1h | 138,540 | $1.39 | 3.2% |
| Fresh input | 947 | $0.00 | 0.0% |
| Charter | Duration | Tool uses | Msgs | Input | Output | cc5m | cr | Cost |
|---|---|---|---|---|---|---|---|---|
| transaction-log-admin | 16m 01s | 65 | 93 | 99 | 9,768 | 264,906 | 8,705,487 | $3.75 |
| transaction-log-scale | 18m 25s | 64 | 82 | 88 | 17,644 | 158,196 | 6,833,971 | $2.91 |
| gateway-settings | 19m 00s | 82 | 117 | 123 | 17,399 | 280,860 | 10,711,092 | $4.53 |
| refund-flow | 22m 26s | 77 | 117 | 123 | 20,005 | 217,936 | 12,157,016 | $4.76 |
| cross-feature-stock-refund | 24m 53s | 95 | 135 | 141 | 17,793 | 239,143 | 13,824,515 | $5.31 |
| checkout-payment-flow | 26m 32s | 104 | 149 | 155 | 18,255 | 226,899 | 15,678,872 | $5.83 |
| Totals (6) | 127m 17s serial | 487 | 693 | 729 | 100,864 | 1,387,940 | 67,910,953 | $27.09 |
Concurrent-wave compression: 6 Testers dispatched at the same time; total sequential-equivalent = 127m 17s, wallclock of the wave ≈ 26m 32s (bounded by the longest Tester). Compression ratio: 4.8× — notably better than Pilot 5 orig's 3.4× and Pilot 4 rerun's 3.3×. Why? Less charter-setup churn this time (all Testers had already-seen charters) and no recon Tester needed.
checkout-payment-flowwent longest (26m / 104 tool uses) — this was the Tester that also did the source-inspection for double-submit defenses. It filed as a Question rather than risk-budget theclick(); click()empirical probe.refund-flowescalated dramatically from orig (2 → 6 Problems, mostly critical) — more thorough probe of direct-call injection paths.transaction-log-adminwas fastest (16m / 65 tool uses) — the charter surface is small; same XSS critical as orig.
| Denominator | Rerun | Orig |
|---|---|---|
| Cost / planted caught | $4.77 (9 caught) | $6.74 |
| Cost / Problem filed | $1.87 (23 filed) | $3.00 |
| Total cost | $42.91 | $53.93 |
Clean single-wave execution, no retry waste. ~20% cheaper than orig for ~28% more Problems.
(15 prior + Amendment G + Amendment E extension)
| # | Amendment | Fired? | Where | Effectiveness |
|---|---|---|---|---|
| 1 | Empty / one / many states | ✓ | 6/6 coverage notes | clean |
| 2 | Absence-of-feature | ✓ | gateway-settings — uninstall hook + dead testmode + dead api_key | clean |
| 3 | Plugin-native writes | ✓ | plugin-native checkout, refund — direct $wpdb only for seed | clean |
| 4 | Cross-feature MANDATORY | ✓✓ | cross-feature-stock-refund — 2 criticals |
load-bearing |
| 5 | UI-path before "missing" | ✓ | no empirically-wrong claims | clean |
| A | Inline counters | — | no fuel (no live-counter UI) | correct non-fire |
| B | State variety | ✓ | transaction-log-admin seeded success + failed + refunded + XSS probe | clean |
| C | Enumerate root-cause surface | ✓ | cross-feature: wc_reduce_stock_levels root → 3 findings chained | clean |
| D | Unsaved-work protection | ✓ (minor) | gateway-settings flagged missing beforeunload (minor); orig had said WC core provides it — divergence |
ambiguous |
| E — admin two-tab | n/a | — | no admin-form concurrency bug on this plugin | |
| E-ext — customer rapid-submit | **~ partial** | checkout-payment-flow filed as Question, not Problem (source-inspected but didn't click twice) | drift — needs tightening | |
| F | View-source HTML | ✓✓ | gateway-settings — API Secret value leaked in raw HTML | load-bearing |
| G — DDL column types | ✓✓✓ | 4 of 6 Testers: gateway-settings, transaction-log-scale, refund-flow, checkout-payment-flow | strongest convergence in project history | |
| Reinf 5 (empty-state MANDATORY) | ✓ | 6/6 coverage notes with the literal string | clean | |
| Reinf 8 (cross-feature MANDATORY) | ✓ | 5/6 coverage notes with the literal string | clean | |
| pqip.propagate-sibling-features | ✓ | checkout filed Luhn + expiry + CVC as one "absent card validation" cluster | clean | |
| pqip.UI-path-before-claim | ✓ | no over-claims | clean |
15 of 17 amendments fired actively; 1 correctly didn't fire (A); 1 partial drift (E-ext).
The loop pattern: pilot → escape-analysis → ship rule → re-run → observe whether rule fires cleanly or drifts → tighten rule. Amendment E-ext now enters the tightening phase, same family as Amendment C's Question-drift on Pilot 4 rerun.
The current rule text says "must be probed" and lists reproducer options but doesn't explicitly close the "source-inspection is sufficient" loophole. The Tester did exactly what a loophole-reading reader would: looked for the defenses in source, found them all absent, and filed the hypothesis as a Question because it hadn't executed the empirical probe.
Proposed rule-text tightening for Amendment E-ext:
Source-inspection alone is NOT sufficient to discharge this probe. If the source-inspection says "no JS disable-on-click file found, no idempotency key in the form HTML, no server-side dedup in the handler" — that is evidence supporting the hypothesis but not proof of the bug. You MUST execute the empirical reproducer (two
clickverbs back-to-back on the submit selector, orevaluate_scriptfiring tworequestSubmit()calls) and count the resulting side-effect (rows in the plugin's table, external API calls, order creations). A Question is appropriate ONLY when the empirical probe is architecturally blocked (e.g., the site is unreachable from the Tester's environment). Otherwise, file as a Problem with the empirical count as evidence.
This rule-text extension would close the drift. Same pattern should be swept across all "probe" amendments — any rule that says "probe X" should explicitly say "execute X, not just infer X from source".
- Ship the Amendment E-ext rule-text tightening (~1 paragraph).
- Optionally sweep other "probe" amendments for the same loophole — though most existing rules already name concrete probe actions, not just "inspect".
- Declare Pilot 5 closed — 9/10 strict with the only remaining miss being the classification-drift soft-fire, not a coverage gap.
- Proceed to Pilot 6 — magellan-gallery — file-handling (MIME, path traversal, size variants) is the next uncovered shape. Amendment G generalizes-test: does the DDL column-type rule fire on file-metadata storage columns?
Five pilots now, four reruns, all converged to ≥ 9/10 on amended harness:
| Pilot | Shape | Model | Original | Rerun |
|---|---|---|---|---|
| 1 (backups) | artifact-producer | Opus | 10/10 | — |
| 2 (contact-forms) | form + email | Opus | 7/10 | 10/10 |
| 3 (members) | role/restriction | Opus | 5/10 | 10/10 |
| 4 (seo-toolkit) | metadata/rendering | Sonnet | 4/10 | 10/10 |
| 5 (pay) | WC payment gateway | Sonnet | 8/10 | 9/10 (10/10 lenient) |
Sonnet + amended harness is validated across three plugin shapes. The loop continues to compound: each pilot's amendments stay and fire on later pilots.
- Final report:
runs/2026-04-24T11-40-34_magellan-pay-rerun/final-report.md - Escape analysis:
runs/2026-04-24T11-40-34_magellan-pay-rerun/escape-analysis.md - Token usage (full detail):
runs/2026-04-24T11-40-34_magellan-pay-rerun/token-usage.json - Manifest:
runs/2026-04-24T11-40-34_magellan-pay-rerun/manifest.json - 6 session reports:
runs/2026-04-24T11-40-34_magellan-pay-rerun/sessions/<slug>/report.json - Pilot 5 orig gist (comparison): https://gist.github.com/alopezari/7dd744c19c0ad21b2de8c630513967f6