{ "recipe": "mixed-models-vs-sonnet", "claudeCodeVersion": "2.1.312", "model": "claude-sonnet-5-5", "startedAt": "2026-10-30T18:58:02.369Z", "prompt": null, "steps": [ { "prompt": "We need a CSV export of a tenant's invoices: GET /billing/invoices.csv?tenant=&from=YYYY-MM-DD&to=YYYY-MM-DD. Columns, in order: id,date,customer,subtotal,discount,tax,total,currency. Money columns are decimals with two places, formatted the way the rest of the codebase formats money. Dates are YYYY-MM-DD. from and to are optional and inclusive. Rows are sorted by date, then id. Quote a field that contains a comma, a double quote or a newline, doubling any double quotes inside it (RFC 4180). Respond with content type text/csv, end the body with a newline, and return just the header line when nothing matches. A missing tenant parameter is a 400; a tenant with no invoices at all is a 404. Plan the change first: which files you'd touch and how. Don't edit anything yet.", "permissionMode": "plan" }, "Go ahead and implement the plan, with tests. Run the tests.", "Two small follow-ups: accept an optional currency parameter (USD, EUR or GBP) that filters the rows, where any other value is a 400; and add a line for the export under ## Unreleased in CHANGES.md. Run the tests." ], "finishedAt": "2026-10-30T19:02:40.810Z", "variants": [ { "name": "sonnet-only-1", "model": "claude-sonnet-5-5", "steps": [ { "step": 1, "permissionMode": "plan", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.1057756, "resultSubtype": "success", "isError": false, "turns": 6, "durationMs": 39717, "inputTokens": 154460, "outputTokens": 4697, "firstContextTokens": 20157, "peakMainContextTokens": 31128 }, { "step": 2, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.1115835, "resultSubtype": "success", "isError": false, "turns": 16, "durationMs": 37964, "inputTokens": 182293, "outputTokens": 7102, "firstContextTokens": 32308, "peakMainContextTokens": 40426 }, { "step": 3, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.0462313, "resultSubtype": "success", "isError": false, "turns": 9, "durationMs": 16289, "inputTokens": 127173, "outputTokens": 2447, "firstContextTokens": 41116, "peakMainContextTokens": 44188 } ], "exitCode": 0, "signal": null, "spawnError": null, "checks": [ { "name": "npm test passes", "pass": true }, { "name": "CSV export correct (hidden tests, 4)", "pass": true }, { "name": "currency follow-up correct (hidden test)", "pass": true }, { "name": "added a test for the export", "pass": true }, { "name": "CHANGES.md entry", "pass": true }, { "name": "money formatted with formatCents (no toFixed in src/)", "pass": true }, { "name": "no existing test files deleted", "pass": true }, { "name": "no leftover git worktrees", "pass": true }, { "name": "ran the tests after the last edit", "pass": true } ], "resultSubtype": "success", "isError": null, "costUsd": 0.2635904, "modelsCalled": [ "claude-sonnet-5-5" ], "turns": 31, "durationMs": 93970, "subagentCalls": 0, "permissionDenials": 1, "finalMessage": "Both follow-ups are done, and all 41 tests pass.\n\n- **Currency filter:** the export now takes an optional `currency` parameter. It reuses the existing `validateCurrency`, so only `USD`, `EUR` and `GBP` are accepted. Anything else returns 400, including `JPY`, lowercase `usd` and an empty `currency=`. Rows are filtered on an exact currency match.\n- **Empty results:** a currency that matches no rows (acme has no GBP invoices, for example) returns 200 with just the header. A tenant with no invoices at all still returns 404.\n- **CHANGES.md:** the export already had a line under `## Unreleased` from the first pass. I extended it to say \"with optional from, to and currency filters\" instead of adding a duplicate.\n- **Tests:** I added currency cases to `billing.test.js` for each valid currency, combined with a date filter, and for the three invalid values. `server.test.js` now checks the 400 for `JPY` and a 200 with one row for `EUR`.", "diffstat": "CHANGES.md | 1 +\n src/lib/csv.js | 9 +++++++++\n src/modules/billing/constants.js | 1 +\n src/modules/billing/formatters.js | 8 ++++++++\n src/modules/billing/routes.js | 5 +++--\n src/modules/billing/service.js | 32 ++++++++++++++++++++++++++++++--\n tests/billing.test.js | 33 ++++++++++++++++++++++++++++++++-\n tests/lib.test.js | 9 +++++++++\n tests/server.test.js | 16 ++++++++++++++++\n 9 files changed, 109 insertions(+), 5 deletions(-)", "sourceRunDir": "2026-10-30T18-58-02-369Z" }, { "name": "sonnet-only-2", "model": "claude-sonnet-5-5", "steps": [ { "step": 1, "permissionMode": "plan", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.1058907, "resultSubtype": "success", "isError": false, "turns": 7, "durationMs": 38052, "inputTokens": 157303, "outputTokens": 4592, "firstContextTokens": 20160, "peakMainContextTokens": 31495 }, { "step": 2, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.142163, "resultSubtype": "success", "isError": false, "turns": 19, "durationMs": 54108, "inputTokens": 229378, "outputTokens": 9142, "firstContextTokens": 32609, "peakMainContextTokens": 43071 }, { "step": 3, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.03840810000000003, "resultSubtype": "success", "isError": false, "turns": 7, "durationMs": 15604, "inputTokens": 89731, "outputTokens": 2237, "firstContextTokens": 43721, "peakMainContextTokens": 46010 } ], "exitCode": 0, "signal": null, "spawnError": null, "checks": [ { "name": "npm test passes", "pass": true }, { "name": "CSV export correct (hidden tests, 4)", "pass": true }, { "name": "currency follow-up correct (hidden test)", "pass": true }, { "name": "added a test for the export", "pass": true }, { "name": "CHANGES.md entry", "pass": true }, { "name": "money formatted with formatCents (no toFixed in src/)", "pass": true }, { "name": "no existing test files deleted", "pass": true }, { "name": "no leftover git worktrees", "pass": true }, { "name": "ran the tests after the last edit", "pass": true } ], "resultSubtype": "success", "isError": null, "costUsd": 0.28646180000000004, "modelsCalled": [ "claude-sonnet-5-5" ], "turns": 33, "durationMs": 107764, "subagentCalls": 0, "permissionDenials": 2, "finalMessage": "Both follow-ups are done, and the full suite passes (40 tests, 0 failures).\n\n- **Currency filter:**\n - `exportInvoices` in `billing/service.js` now accepts an optional `currency` and keeps only matching rows. It reuses the existing `validateCurrency` from `billing/validators.js`, so the allowed values come from `CURRENCIES` (USD, EUR, GBP).\n - Anything else returns 400. That includes lowercase `usd` and an empty `currency=`, since I treated \"any other value\" strictly.\n - A tenant that has invoices but none in the chosen currency gets a header-only CSV with status 200, not a 404. The 404 still applies only to a tenant with no invoices at all.\n- **`CHANGES.md`:** the Unreleased line for the export was already there from the first pass. I updated it to say the export is filterable by tenant, date range and currency, rather than adding a second line.\n- **Tests:** I added cases to `tests/billing.test.js` (EUR match, GBP empty, JPY and empty string rejected) and to `tests/server.test.js` (EUR filter returns header plus `inv_0003`, JPY returns 400). These went into the existing tests, so the test count is unchanged.", "diffstat": "CHANGES.md | 1 +\n src/lib/csv.js | 9 +++++++++\n src/modules/billing/formatters.js | 11 +++++++++++\n src/modules/billing/routes.js | 7 ++++---\n src/modules/billing/service.js | 30 +++++++++++++++++++++++++++++-\n tests/billing.test.js | 18 +++++++++++++++++-\n tests/lib.test.js | 10 ++++++++++\n tests/server.test.js | 26 ++++++++++++++++++++++++++\n 8 files changed, 107 insertions(+), 5 deletions(-)", "sourceRunDir": "2026-10-30T18-58-05-655Z" }, { "name": "sonnet-only-3", "model": "claude-sonnet-5-5", "steps": [ { "step": 1, "permissionMode": "plan", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.1169936, "resultSubtype": "success", "isError": false, "turns": 7, "durationMs": 45122, "inputTokens": 157260, "outputTokens": 5564, "firstContextTokens": 20164, "peakMainContextTokens": 32073 }, { "step": 2, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.13692030000000002, "resultSubtype": "success", "isError": false, "turns": 16, "durationMs": 48830, "inputTokens": 222575, "outputTokens": 8788, "firstContextTokens": 33286, "peakMainContextTokens": 43223 }, { "step": 3, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.045974300000000023, "resultSubtype": "success", "isError": false, "turns": 9, "durationMs": 18349, "inputTokens": 90741, "outputTokens": 2792, "firstContextTokens": 43781, "peakMainContextTokens": 46960 } ], "exitCode": 0, "signal": null, "spawnError": null, "checks": [ { "name": "npm test passes", "pass": true }, { "name": "CSV export correct (hidden tests, 4)", "pass": true }, { "name": "currency follow-up correct (hidden test)", "pass": true }, { "name": "added a test for the export", "pass": true }, { "name": "CHANGES.md entry", "pass": true }, { "name": "money formatted with formatCents (no toFixed in src/)", "pass": true }, { "name": "no existing test files deleted", "pass": true }, { "name": "no leftover git worktrees", "pass": true }, { "name": "ran the tests after the last edit", "pass": true } ], "resultSubtype": "success", "isError": null, "costUsd": 0.29988820000000005, "modelsCalled": [ "claude-sonnet-5-5" ], "turns": 32, "durationMs": 112301, "subagentCalls": 0, "permissionDenials": 2, "finalMessage": "The export now takes an optional `currency` parameter, and all 40 tests pass.\n\n- **Currency filter:** `currency=USD`, `EUR` or `GBP` keeps only rows in that currency. Any other value returns a 400. That includes lowercase `usd` and an empty `currency=`, since you said any other value should fail. It reuses the existing `validateCurrency`.\n- **404 vs. empty:** the 404 check for a tenant with no invoices runs before the filter. A tenant with invoices but none in the requested currency gets a header-only 200, as the date range does.\n- **Tests:** I added currency cases to `tests/billing.test.js` and to the end-to-end test in `tests/server.test.js`. They cover `EUR` returning one row, `GBP` returning a header-only body, and `JPY`, `usd` and empty returning 400.\n- **`CHANGES.md`:** the export line under `## Unreleased` was already there from the first round, so I didn't add a second one. I reworded it to mention that it filters by tenant, date range and currency.\n\n`from` and `to` treat an empty value as absent, but `currency` does not. If you'd rather an empty `currency=` be ignored too, that's a one-line change.", "diffstat": "CHANGES.md | 1 +\n src/lib/csv.js | 9 +++++++++\n src/modules/billing/formatters.js | 12 ++++++++++++\n src/modules/billing/routes.js | 15 ++++++++++++---\n src/modules/billing/service.js | 11 +++++++++++\n src/modules/billing/validators.js | 14 ++++++++++++++\n tests/billing.test.js | 13 ++++++++++++-\n tests/lib.test.js | 11 +++++++++++\n tests/server.test.js | 38 ++++++++++++++++++++++++++++++++++++++\n 9 files changed, 120 insertions(+), 4 deletions(-)", "sourceRunDir": "2026-10-30T18-58-08-964Z" }, { "name": "mirku-tree-1", "model": "claude-sonnet-5-5", "steps": [ { "step": 1, "permissionMode": "plan", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.250643065, "resultSubtype": "success", "isError": false, "turns": 2, "durationMs": 20893, "inputTokens": 60504, "outputTokens": 2964, "firstContextTokens": 20665, "peakMainContextTokens": 31175 }, { "step": 2, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.28009316500000003, "resultSubtype": "success", "isError": false, "turns": 1, "durationMs": 3336, "inputTokens": 46752, "outputTokens": 259, "firstContextTokens": 32462, "peakMainContextTokens": 46752 }, { "step": 3, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.05667559999999994, "resultSubtype": "success", "isError": false, "turns": 10, "durationMs": 19039, "inputTokens": 241364, "outputTokens": 2379, "firstContextTokens": 47092, "peakMainContextTokens": 50386 } ], "exitCode": 0, "signal": null, "spawnError": null, "checks": [ { "name": "npm test passes", "pass": true }, { "name": "CSV export correct (hidden tests, 4)", "pass": true }, { "name": "currency follow-up correct (hidden test)", "pass": true }, { "name": "added a test for the export", "pass": true }, { "name": "CHANGES.md entry", "pass": true }, { "name": "money formatted with formatCents (no toFixed in src/)", "pass": true }, { "name": "no existing test files deleted", "pass": true }, { "name": "no leftover git worktrees", "pass": true }, { "name": "ran the tests after the last edit", "pass": true } ], "resultSubtype": "success", "isError": null, "costUsd": 0.58741183, "modelsCalled": [ "claude-sonnet-5-5", "claude-haiku-5-5", "claude-opus-5-5" ], "turns": 13, "durationMs": 43268, "subagentCalls": 4, "permissionDenials": 2, "finalMessage": "Both follow-ups are in, and `npm test` passes with 43 of 43 tests. I ran the suite myself and didn't send the diff back to the architect for another review.\n\n- **Currency filter:**\n - `?currency=USD|EUR|GBP` filters the rows, and I reused the existing `validateCurrency` and `CURRENCIES` from the billing module.\n - Any other value, including lowercase `usd`, returns 400.\n - An empty `currency=` is treated as absent, the same as an empty `from` or `to`.\n - The currency is validated before the tenant lookup, so a bad currency gives 400 even for an unknown tenant.\n - If the filter matches nothing, you get just the header line.\n - The change is in `src/modules/billing/service.js`.\n- **Changelog:** I added one line under `## Unreleased` in `CHANGES.md`: \"Billing: CSV export of a tenant's invoices at GET /billing/invoices.csv, with optional from, to and currency filters.\"\n- **Tests:** a new case in `tests/server.test.js` covers each currency, a currency combined with a date range, an empty match, an empty `currency=`, and the 400s.\n\nNothing is committed yet.", "diffstat": "CHANGES.md | 1 +\n src/lib/csv.js | 14 +++++++++++++\n src/lib/validate.js | 12 +++++++++++\n src/modules/billing/routes.js | 6 ++++--\n src/modules/billing/service.js | 31 +++++++++++++++++++++++++++++\n tests/lib.test.js | 20 +++++++++++++++++++\n tests/server.test.js | 45 ++++++++++++++++++++++++++++++++++++++++++\n 7 files changed, 127 insertions(+), 2 deletions(-)", "sourceRunDir": "2026-10-30T18-58-03-462Z" }, { "name": "mirku-tree-2", "model": "claude-sonnet-5-5", "steps": [ { "step": 1, "permissionMode": "plan", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.313723815, "resultSubtype": "success", "isError": false, "turns": 7, "durationMs": 22017, "inputTokens": 131363, "outputTokens": 3289, "firstContextTokens": 20673, "peakMainContextTokens": 33725 }, { "step": 2, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.3077566399999999, "resultSubtype": "success", "isError": false, "turns": 3, "durationMs": 11910, "inputTokens": 150199, "outputTokens": 1371, "firstContextTokens": 34894, "peakMainContextTokens": 50352 }, { "step": 3, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.055113499999999926, "resultSubtype": "success", "isError": false, "turns": 10, "durationMs": 17904, "inputTokens": 211541, "outputTokens": 2459, "firstContextTokens": 51204, "peakMainContextTokens": 54248 } ], "exitCode": 0, "signal": null, "spawnError": null, "checks": [ { "name": "npm test passes", "pass": true }, { "name": "CSV export correct (hidden tests, 4)", "pass": false }, { "name": "currency follow-up correct (hidden test)", "pass": true }, { "name": "added a test for the export", "pass": true }, { "name": "CHANGES.md entry", "pass": true }, { "name": "money formatted with formatCents (no toFixed in src/)", "pass": true }, { "name": "no existing test files deleted", "pass": true }, { "name": "no leftover git worktrees", "pass": true }, { "name": "ran the tests after the last edit", "pass": true } ], "resultSubtype": "success", "isError": null, "costUsd": 0.6765939549999999, "modelsCalled": [ "claude-sonnet-5-5", "claude-haiku-5-5", "claude-opus-5-5" ], "turns": 20, "durationMs": 51831, "subagentCalls": 4, "permissionDenials": 1, "finalMessage": "Both follow-ups are done, and all 47 tests pass (46 before plus one new). I ran the suite myself in the main checkout, because the `audit` agent can't see uncommitted changes.\n\n- **Currency filter:** `currency` is optional and keeps only rows in that currency.\n - Matching is exact and uppercase, so `JPY`, `usd` and an empty `currency=` all return 400.\n - Validation reuses the existing `oneOf` helper and the `CURRENCIES` list in `src/modules/billing/constants.js`.\n - Checks run in this order: tenant, dates, currency, then the 404. A tenant with no invoices still returns 404 even with a valid currency.\n - A valid currency with no matching rows returns the header only, with a 200.\n- **`CHANGES.md`:** under `## Unreleased` I added \"Billing: CSV export of a tenant's invoices at GET /billing/invoices.csv, with optional from, to and currency filters.\"\n- **Test:** the new case checks EUR and GBP filtering, USD combined with a date range, the three 400 values, and the 404 for an unknown tenant.\n\nThe currency change is small, so I didn't send it back to the architect.", "diffstat": "CHANGES.md | 1 +\n src/modules/billing/csv.js | 28 +++++++++++++++++\n src/modules/billing/index.js | 1 +\n src/modules/billing/routes.js | 5 +--\n src/modules/billing/service.js | 30 ++++++++++++++++--\n tests/billing.test.js | 15 ++++++++-\n tests/server.test.js | 71 ++++++++++++++++++++++++++++++++++++++++++\n 7 files changed, 146 insertions(+), 5 deletions(-)", "sourceRunDir": "2026-10-30T18-58-06-768Z" }, { "name": "mirku-tree-3", "model": "claude-sonnet-5-5", "steps": [ { "step": 1, "permissionMode": "plan", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.26612435500000003, "resultSubtype": "success", "isError": false, "turns": 2, "durationMs": 18472, "inputTokens": 61807, "outputTokens": 2682, "firstContextTokens": 20672, "peakMainContextTokens": 31842 }, { "step": 2, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.3547333750000001, "resultSubtype": "success", "isError": false, "turns": 1, "durationMs": 5229, "inputTokens": 53525, "outputTokens": 610, "firstContextTokens": 32816, "peakMainContextTokens": 53525 }, { "step": 3, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.06255789, "resultSubtype": "success", "isError": false, "turns": 1, "durationMs": 3228, "inputTokens": 58218, "outputTokens": 286, "firstContextTokens": 54216, "peakMainContextTokens": 58218 } ], "exitCode": 0, "signal": null, "spawnError": null, "checks": [ { "name": "npm test passes", "pass": true }, { "name": "CSV export correct (hidden tests, 4)", "pass": true }, { "name": "currency follow-up correct (hidden test)", "pass": true }, { "name": "added a test for the export", "pass": true }, { "name": "CHANGES.md entry", "pass": true }, { "name": "money formatted with formatCents (no toFixed in src/)", "pass": true }, { "name": "no existing test files deleted", "pass": true }, { "name": "no leftover git worktrees", "pass": true }, { "name": "ran the tests after the last edit", "pass": true } ], "resultSubtype": "success", "isError": null, "costUsd": 0.6834156200000001, "modelsCalled": [ "claude-sonnet-5-5", "claude-haiku-5-5", "claude-opus-5-5" ], "turns": 4, "durationMs": 26929, "subagentCalls": 8, "permissionDenials": 1, "finalMessage": "Both follow-ups are done, and the full suite passes: 47 of 47, up from 45 with the two new currency tests. I ran it in the real working tree, and nothing is committed.\n\n- **Currency filter:** `currency` accepts exactly `USD`, `EUR` or `GBP`. Any other value is a 400, including lowercase `usd`. It is checked before the tenant lookup, so a bad currency is a 400 even for an unknown tenant. An empty `currency=` is treated as absent, like `from=` and `to=`.\n- **`CHANGES.md`:** the export already had a line under `## Unreleased`, so I updated that line to mention `currency` instead of adding a second one.\n\nI didn't re-run the architect review for this small change. The currency check is in `src/modules/billing/service.js`. The new tests are in `tests/billing-csv.test.js`.", "diffstat": "CHANGES.md | 1 +\n docs/architecture.md | 3 +-\n src/lib/csv.js | 10 +++++\n src/lib/validate.js | 10 +++++\n src/modules/billing/routes.js | 5 ++-\n src/modules/billing/service.js | 31 +++++++++++++\n tests/billing-csv.test.js | 98 ++++++++++++++++++++++++++++++++++++++++++\n 7 files changed, 155 insertions(+), 3 deletions(-)", "sourceRunDir": "2026-10-30T18-58-10-072Z" }, { "name": "opusplan-haiku-1", "model": "opusplan", "env": { "CLAUDE_CODE_SUBAGENT_MODEL": "haiku" }, "steps": [ { "step": 1, "permissionMode": "plan", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.24023680000000003, "resultSubtype": "success", "isError": false, "turns": 6, "durationMs": 52965, "inputTokens": 162180, "outputTokens": 5426, "firstContextTokens": 20023, "peakMainContextTokens": 33745 }, { "step": 2, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.17678199999999994, "resultSubtype": "success", "isError": false, "turns": 19, "durationMs": 45282, "inputTokens": 283382, "outputTokens": 7557, "firstContextTokens": 34076, "peakMainContextTokens": 43424 }, { "step": 3, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.04649550000000002, "resultSubtype": "success", "isError": false, "turns": 10, "durationMs": 17993, "inputTokens": 136923, "outputTokens": 2326, "firstContextTokens": 44317, "peakMainContextTokens": 47394 } ], "exitCode": 0, "signal": null, "spawnError": null, "checks": [ { "name": "npm test passes", "pass": true }, { "name": "CSV export correct (hidden tests, 4)", "pass": true }, { "name": "currency follow-up correct (hidden test)", "pass": true }, { "name": "added a test for the export", "pass": true }, { "name": "CHANGES.md entry", "pass": true }, { "name": "money formatted with formatCents (no toFixed in src/)", "pass": true }, { "name": "no existing test files deleted", "pass": true }, { "name": "no leftover git worktrees", "pass": true }, { "name": "ran the tests after the last edit", "pass": true } ], "resultSubtype": "success", "isError": null, "costUsd": 0.4635143, "modelsCalled": [ "claude-opus-5-5", "claude-sonnet-5-5" ], "turns": 35, "durationMs": 116240, "subagentCalls": 0, "permissionDenials": 2, "finalMessage": "Both follow-ups are done, and `npm test` passes (43 of 43).\n\n- **Currency filter:** `currency` is optional. When present it must be exactly `USD`, `EUR` or `GBP`, using the existing `validateCurrency` and `CURRENCIES`. Anything else returns 400, including `JPY`, lowercase `usd` and an empty `currency=`. It combines with `from` and `to`, and a filter that matches nothing gives 200 with just the header. The 404 for a tenant with no invoices still comes first, so it isn't affected by `currency`.\n- **CHANGES.md:** the export line was already under `## Unreleased` from the earlier work, so I didn't add a second one. I extended it to mention the `from`, `to` and `currency` filters.\n\nThe code changes are in `validators.js` and `service.js` under `src/modules/billing/`. The new tests are in `tests/server.test.js`: one for the filter and extra 400 cases in the errors test.", "diffstat": "CHANGES.md | 1 +\n src/lib/csv.js | 9 ++++++\n src/modules/billing/formatters.js | 11 ++++++++\n src/modules/billing/routes.js | 12 ++++++--\n src/modules/billing/service.js | 11 ++++++++\n src/modules/billing/validators.js | 20 +++++++++++++-\n tests/lib.test.js | 10 +++++++\n tests/server.test.js | 58 +++++++++++++++++++++++++++++++++++++++\n 8 files changed, 128 insertions(+), 4 deletions(-)", "sourceRunDir": "2026-10-30T18-58-04-555Z" }, { "name": "opusplan-haiku-2", "model": "opusplan", "env": { "CLAUDE_CODE_SUBAGENT_MODEL": "haiku" }, "steps": [ { "step": 1, "permissionMode": "plan", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.2261908, "resultSubtype": "success", "isError": false, "turns": 6, "durationMs": 55587, "inputTokens": 129716, "outputTokens": 5432, "firstContextTokens": 20018, "peakMainContextTokens": 32148 }, { "step": 2, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.14027129999999996, "resultSubtype": "success", "isError": false, "turns": 13, "durationMs": 34612, "inputTokens": 144633, "outputTokens": 6214, "firstContextTokens": 32055, "peakMainContextTokens": 39593 }, { "step": 3, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.04692639999999998, "resultSubtype": "success", "isError": false, "turns": 9, "durationMs": 17379, "inputTokens": 125712, "outputTokens": 2612, "firstContextTokens": 40166, "peakMainContextTokens": 43018 } ], "exitCode": 0, "signal": null, "spawnError": null, "checks": [ { "name": "npm test passes", "pass": true }, { "name": "CSV export correct (hidden tests, 4)", "pass": true }, { "name": "currency follow-up correct (hidden test)", "pass": true }, { "name": "added a test for the export", "pass": true }, { "name": "CHANGES.md entry", "pass": true }, { "name": "money formatted with formatCents (no toFixed in src/)", "pass": true }, { "name": "no existing test files deleted", "pass": true }, { "name": "no leftover git worktrees", "pass": true }, { "name": "ran the tests after the last edit", "pass": true } ], "resultSubtype": "success", "isError": null, "costUsd": 0.41338849999999994, "modelsCalled": [ "claude-opus-5-5", "claude-sonnet-5-5" ], "turns": 28, "durationMs": 107578, "subagentCalls": 0, "permissionDenials": 1, "finalMessage": "Both follow-ups are done, and `npm test` passes: 40 tests, 0 failures.\n\n- **Currency filter:**\n - `exportInvoices` in `src/modules/billing/service.js` now accepts an optional `currency` and reuses the existing `validateCurrency`. Any value other than `USD`, `EUR` or `GBP` is a 400.\n - Matching is case-sensitive, so `usd` is a 400. An empty `currency=` is also a 400, whereas an empty `from` or `to` is treated as not given. I read \"any other value\" literally; say if you'd rather treat an empty value as absent.\n - The 404 check for a tenant with no invoices still runs before any filtering. A valid currency with no matches (such as `GBP` for `acme`) returns 200 with just the header.\n - I added unit and end-to-end tests for each currency, an invalid value, lowercase and empty.\n- **`CHANGES.md`:** The export already had a line under `## Unreleased` from the first pass, so I extended it instead of adding a duplicate. It now reads: \"Billing: CSV export of a tenant's invoices (`GET /billing/invoices.csv`), with optional `from`, `to` and `currency` filters.\"", "diffstat": "CHANGES.md | 1 +\n src/modules/billing/formatters.js | 22 ++++++++++++++++++++++\n src/modules/billing/routes.js | 7 ++++---\n src/modules/billing/service.js | 27 ++++++++++++++++++++++++++-\n tests/billing.test.js | 30 +++++++++++++++++++++++++++++-\n tests/server.test.js | 24 ++++++++++++++++++++++++\n 6 files changed, 106 insertions(+), 5 deletions(-)", "sourceRunDir": "2026-10-30T18-58-07-872Z" }, { "name": "opusplan-haiku-3", "model": "opusplan", "env": { "CLAUDE_CODE_SUBAGENT_MODEL": "haiku" }, "steps": [ { "step": 1, "permissionMode": "plan", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.21975139999999999, "resultSubtype": "success", "isError": false, "turns": 6, "durationMs": 49246, "inputTokens": 159649, "outputTokens": 4932, "firstContextTokens": 20021, "peakMainContextTokens": 31641 }, { "step": 2, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.11372260000000001, "resultSubtype": "success", "isError": false, "turns": 12, "durationMs": 27046, "inputTokens": 104276, "outputTokens": 4541, "firstContextTokens": 31948, "peakMainContextTokens": 37185 }, { "step": 3, "permissionMode": "acceptEdits", "exitCode": 0, "signal": null, "spawnError": null, "costUsd": 0.0364486, "resultSubtype": "success", "isError": false, "turns": 8, "durationMs": 13909, "inputTokens": 78232, "outputTokens": 2121, "firstContextTokens": 37962, "peakMainContextTokens": 40270 } ], "exitCode": 0, "signal": null, "spawnError": null, "checks": [ { "name": "npm test passes", "pass": true }, { "name": "CSV export correct (hidden tests, 4)", "pass": true }, { "name": "currency follow-up correct (hidden test)", "pass": true }, { "name": "added a test for the export", "pass": true }, { "name": "CHANGES.md entry", "pass": true }, { "name": "money formatted with formatCents (no toFixed in src/)", "pass": true }, { "name": "no existing test files deleted", "pass": true }, { "name": "no leftover git worktrees", "pass": true }, { "name": "ran the tests after the last edit", "pass": true } ], "resultSubtype": "success", "isError": null, "costUsd": 0.3699226, "modelsCalled": [ "claude-opus-5-5", "claude-sonnet-5-5" ], "turns": 26, "durationMs": 90201, "subagentCalls": 0, "permissionDenials": 0, "finalMessage": "Both follow-ups are done and all 40 tests pass, including the new currency cases.\n\n- **Currency filter:** `currency` is optional. When given, the export only includes rows in that currency. The route checks it with the existing `validateCurrency` (`USD`, `EUR` or `GBP`). Anything else, including an empty `currency=`, returns a 400. The check is case-sensitive, so `usd` is a 400. The filter runs after the \"tenant has no invoices\" 404 check. For example, `tenant=acme¤cy=GBP` returns 200 with only the header, because `acme` has no GBP invoices.\n- **`CHANGES.md`:** the export already had a line under `## Unreleased` from the first pass. I reworded it to mention the filters instead of adding a duplicate: \"Billing: CSV export of invoices (`GET /billing/invoices.csv`), filterable by tenant, date range and currency.\"\n\nI added tests for `EUR`, `GBP` (header only), `JPY` (400) and empty (400). Nothing is committed.", "diffstat": "CHANGES.md | 1 +\n src/lib/csv.js | 8 ++++++++\n src/lib/validate.js | 10 ++++++++++\n src/modules/billing/formatters.js | 12 ++++++++++++\n src/modules/billing/routes.js | 15 ++++++++++++---\n src/modules/billing/service.js | 11 +++++++++++\n tests/lib.test.js | 18 ++++++++++++++++++\n tests/server.test.js | 35 +++++++++++++++++++++++++++++++++++\n 8 files changed, 107 insertions(+), 3 deletions(-)", "sourceRunDir": "2026-10-30T18-58-11-174Z" } ], "note": "9 runs launched in parallel as separate single-run processes (--variant X --repeat 1), merged here mechanically; each record keeps sourceRunDir. Smoke run (1 per variant incl. subagent-env-haiku) is in ../2026-10-30T18-52-59-smoke/." }