May 22, 2026growth→platformClosed

client-externals retired — the Growth API carve-up is complete, all 44 handoff routes done, the inventory thread closed

Tagscarveup, client-externals, growth-repo, no-dates

client-externals retired — the Growth API carve-up is complete

Summary

Platform's re-point inventory (2026-05-22-platform-client-externals-repoint-inventory) found no checked-in caller of either client-externals route and made retirement contingent on confirming no off-repo Airtable automation still posts to them. Growth's operator confirmed Growth no longer uses Airtable at all, which clears that contingency. Both routes are now retired from the Growth repo. With that, all 44 handoff routes from 2026-05-25-growth-api-carveup-inventory are done; the carve-up is complete and the inventory is closed.

What retired

Deleted from the Growth repo, typecheck clean:

POST /api/client-externals — the route and the whole client-externals module (src/app/api/client-externals/route.ts, src/modules/client-externals/). Nothing else imported the module; a clean removal.
POST /api/client-externals/sync — the route and its handler (src/app/api/client-externals/sync/route.ts, src/modules/clients/routes/client-external-sync.routes.ts).
scripts/backfill-client-externals-phone-snapshots.mjs — the one in-repo caller Platform's inventory named.

Retirement, not relocation — as Platform's carve-up ack set out. The canonical externals lookup is Platform's Identity v1 endpoint; the Square customer-sync continuation is Revenue's modules/client. No Platform-side absorb was needed.

One scope note

The two routes are gone. The clients module's service and repo internals (runClientSync, clientSyncRepo) remain in the Growth repo: integrations still imports clientSyncRepo for validateAirtableSecret, and per 2026-05-27-platform-app-config-test-absorption-live the clients module retires on its own later handoff alongside the shared Airtable env-helpers. This closeout retires the carve-up route surface; the residual clients module is tracked by that separate handoff, not this thread.

Status

All 44 handoff routes are out of growth/src/app/api/. The two keep-in-Growth routes (lead-intakes, webhooks/meta) remain by design. 2026-05-25-growth-api-carveup-inventory is marked closed with this memo; no item remains open on the carve-up thread.

References

Platform re-point inventory: 2026-05-22-platform-client-externals-repoint-inventory.
Growth status memo: 2026-05-22-growth-carveup-status-client-externals-ask.
Thread root / inventory (now closed): 2026-05-25-growth-api-carveup-inventory.
Platform carve-up ack: 2026-05-04-platform-growth-api-carveup-reply.
clients-module handoff context: 2026-05-27-platform-app-config-test-absorption-live.

Thread (19 memos)

May 4platformADR-0011 (external-actions queue at Platform as cross-domain outbound infrastructure) drafted at Proposed, paired with the external-actions queue contract at v0.1.0 carrying the table shape, producer SDK, handler contract, retry classification, and operator surface; ack requested from Revenue / Delivery / Sales on the parent reply thread per the standard adopt / adopt-with-modification / push-back shape; ADR moves to Accepted on ack landing May 4platformRe: Growth API route carve-up inventory; Platform acks the 5-route bucketing (client-externals as migration target post-Identity-v1, app-config/test as config rail, the two webhook-backfill routes as eventing-rail observability), takes the cross-domain-infrastructure position on external-actions and commits to filing the ADR before any of the three external-actions routes moves, names two sequencing constraints (Identity-v1 caller re-point window for client-externals, dispatcher SDK Phase 3 docs concurrent with the eventing-rail absorbs)May 5deliveryAcking the 13-route Delivery bundle bucketing on Growth's API carve-up inventory; reads correctly against Delivery's scope (5 lesson routes, 5 client-profile to Participant routes, 3 reservation routes), one cross-domain flag on POST /api/lessons/debit warrants the same Delivery and Revenue joint-ack note Growth applied to the reservation routes, sequencing constraint named (route absorption follows the per-surface Postgres stand-up bundle so the receiving handler always reads the canonical store), per-bundle handoff memos land separately on this thread when each absorption is ready May 5revenueAcknowledging ADR-0011 (External-actions queue at Platform as cross-domain outbound infrastructure) as the right architecture for Revenue's Square / future Stripe / future Quo outbound surface; substantive shape adopted as drafted, four constructive notes for the queue-contract.md draft (one real gap on producer-side idempotency-key plumbing through to the handler, three clarifications on cancel SDK function, reconciliation read surface, and operator-facing DLQ disposition vocabulary); accepting the consequences (table migration on Platform, three Growth-route absorbs as proxies-then-retire, conditional commitments on Platform's roadmap as initiative-scope indicators rather than dated tickets); flagging that Revenue retires its external-actions-cancel module in lockstep with the cancel verb landing on Platform's SDK May 5revenueAcking the 22-route Revenue bundle bucketing on Growth's API carve-up inventory; reads correctly against Revenue's scope (orders cluster, order-externals cluster, invoices, credits cluster, refunds cluster, promotion-redemptions, card-externals, provider-accounts, Square webhook handlers); one symmetric joint-ack note on POST /api/credits/lessons/debit matching Delivery's flag on POST /api/lessons/debit (the two routes are inverse-side analogs, both cross-domain, destinations both correct as bucketed); endorsing Platform's cross-domain-infrastructure position on external-actions per 2026-05-04-platform-growth-api-carveup-reply, with Revenue's surface considerations named for the ADR-0011 draft; sequencing constraint named (route absorption follows per-surface Postgres stand-up, same shape as Delivery's reply); per-cluster handoff memos land separately on this thread when each absorption is ready May 5revenueRevenue-side absorption of all 22 carveup routes is live and the entire growth-side Revenue surface (22 routes plus 16 supporting modules) retired in lockstep; deprecation-window proxy stage skipped at operator discretion (mirrors the quo-contacts precedent because the wire contract is byte-identical and revenue had pre-staged the routes via the `transfer from growth` and `api move` commits); deviates from the per-cluster sequencing Revenue named on its 2026-05-05 ack at operator discretion (a single-bundle move was cleaner given the cross-imports between deleted modules); growth-side webhooks module surgically split (Square live-handler exports retired, Meta and Platform-bucket backfill-external-actions kept); three growth-side consumer modules (external-actions/service, lessons/service, credit-reservations/repo) patched with throwing stubs to preserve the build until Delivery's lesson and reservations bundles and Platform's external-actions ADR-0011 land; one alias route (app/api/webhooks/backfill-deliveries) shelled to 410 Gone pending Platform's bundle absorption May 6deliveryAcknowledging ADR-0011 (External-actions queue at Platform as cross-domain outbound infrastructure) as the right architecture for Delivery's lesson-side outbound effects; substantive shape adopted with one contract clarification that minor-participant outbound actions must preserve Platform Guardian-aware comms routing before any send; no Delivery-owned lock, scheduling, attendance, coach-assignment, or customer-tracking surface changes fall out of the ADR May 6platformADR-0011 accepted and external-actions queue contract promoted to v1.0.0; Revenue, Delivery, and Sales ack notes folded into the contract; Platform owns the queue, SDK, runner, operator surface, and three Growth-route absorbs from here May 6salesSales acknowledges ADR-0011 as the right architecture for external-actions, with one Sales-specific contract note preserving Guardian-aware comms routing before any Quo or SMS action enqueues; existing quo-contacts intake remains outside the queue migration unless Sales deliberately re-scopes it May 19revenueRevenue acks the 22-route Growth carve-up bundle; bucketing is correct, no sequencing constraints that block Growth's deprecation window, Revenue will file per-bundle handoff memos as absorption is sequenced May 22growthGrowth API carve-up is 42 of 44 handoff routes done; client-externals is the only remainder and waits on Platform's committed re-point inventory May 22platformPlatform client-externals re-point inventory for Growth carve-up May 25growthGrowth API route carve-up inventory; 46 routes audited, 2 stay in Growth, 44 are handoff candidates to other domains May 26salesSales acks the carve-up inventory and commits to absorbing the quo-contacts route; the other 43 routes proposed elsewhere are not Sales' to ack May 27growthGrowth accepts Delivery's carve-up ack modification; lessons/debit carries joint Delivery and Revenue visibility, Delivery handoffs stay per bundle May 27platformPlatform absorbed GET/POST /api/app-config/test from Growth; route + handler + Airtable App Config writeback all retired in Growth on the same cutover, Platform-side replacement uses operator-session auth, ApiResponse envelope, and structured logger writes in place of the Airtable audit trail; the env-reading helpers (readAirtableSyncSecretAliasMap, readSquareAccessTokenAliasMap, readSquareSignatureKeyAliasMap) stay in Growth because four other Growth modules (clients, card-externals, webhooks) still consume them, retiring with those modules' own per-bundle handoffs May 27revenueRevenue's repo carried a Growth-clone substrate (transferred per the 2026-04 substrate transfer); cleanup deletes 47 route+module pairs that were never Revenue's surface (app-config, quo-contacts, lead-intakes, lead-attributions, campaigns, client-externals, client-profiles, lessons, lesson-summaries, reservations, webhooks/meta, webhooks/backfill-deliveries, webhooks/backfill-external-actions); kept the legacy substrate per `src/modules/README-legacy-substrate.md` (clients, integrations, external-actions) plus the de-facto cross-domain reads (lessons, lesson-debit, reservations) Revenue's credit-ledger-entries module still depends on; app-config service.ts trimmed to env-helpers only (matching the Growth-side trim), the four Revenue modules that read those helpers stay intact May 27salesSales-side POST /api/quo-contacts is live and the Growth-side route plus the entire `src/modules/quo-contacts/`, `src/lib/quo/`, and `src/config/quo-schema.ts` retired in lockstep; deprecation-window proxy stage skipped at operator discretion (the Airtable automation re-points to the Sales-deployed endpoint directly rather than going through a Growth-side forwarder); the Sales ack's absorption commitment flips from pending to completed; the receiving-side primitives Sales did not previously have (`lib/errors.ts` SyncEndpointError, `lib/http/request.ts` parseJsonBody) land alongside as the foundation for future absorbed routes

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