[lilyshen0722]

Draft, held until airtable-client-id and airtable-client-secret each have an enabled version in Secret Manager. Once they do, this PR also flips hostedMcp.airtable.enabled: true in values-dev.yaml.

Why

Airtable keeps every dynamically registered client in development mode. So far only the account that registered it has been able to connect; every other account gets access_denied ("cannot be used outside of development") before any consent screen. #3333 fixes the copy for that. This PR is the real fix: Airtable switches to a hand-registered integration, which can carry the privacy and terms URLs Airtable requires before other accounts can authorize.

What

• The airtable entry changes from client: 'dcr' to client: 'pre-registered'. Its id and secret come from AIRTABLE_CLIENT_ID / AIRTABLE_CLIENT_SECRET, the names hostedMcpClientConfigKeys('airtable') derives.
• Chart: hostedMcp.airtable.enabled defaults to off in values.yaml and values-dev.yaml. When it's on, the api-keys ExternalSecret syncs the two keys. Backend and ops-runner take them as optional: true env, wired the same way as google-calendar.
• Flag off: Airtable is left out of the catalogue, and a start returns 503 client_not_configured (the google-calendar path).
• The token endpoint uses client_secret_basic, which Airtable's discovery advertises, so the secret travels in the Authorization header and never in a URL.
• Effect on existing data: prod holds 4 Airtable rows, all pending and none connected. A pending row started under the old client is refused at exchange with a clean redirect, and the person starts again. The old DCR registry rows stay in the database, but nothing reads them for Airtable now.

Tests

The hosted-MCP entry, intake, DCR-registry and catalogue suites: 169/171. The two failures are stagingSeed git-checkout cases, and they fail the same way on an unrelated tree in the test container, which has no .git.

Reverse check: with airtable.ts back on dcr, the two new tests fail ("Airtable presents a pre-registered client its issuer can authenticate", "Airtable, now pre-registered, never touches the registry or its registration endpoint"). With the change restored, they pass.

helm template with hostedMcp.airtable.enabled false renders 0 ExternalSecret entries for Airtable; with it true, it renders 2.

Review: one round with two fresh reviewers (correctness, and credential handling because a client secret is involved). Both PASS.

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https://claude.ai/code/session_01MDs9DPFVAooJnqCSwrdxVw

[coderabbitai]

Walkthrough

Airtable’s hosted-MCP entry now uses a pre-registered OAuth client instead of dynamic client registration. Helm configuration conditionally maps Airtable credentials from the api-keys Secret and exposes them to the backend and ops-runner.

Changes: Airtable hosted MCP client

Layer / File(s)	Summary
Pre-registered client behavior backend/integrations/hostedMcp/airtable.ts, backend/__tests__/service/hostedMcpDcrRegistry.test.js, backend/__tests__/unit/services/hostedMcpEntry.test.js, backend/__tests__/unit/services/hostedMcpIntake.test.js, backend/__tests__/unit/services/installableCatalogService.test.js	The Airtable entry uses a pre-registered client with client_secret_basic. Tests cover credentials in code-exchange and refresh requests, verify that Airtable DCR registration is unsupported, and configure credentials when checking catalogue allowlisting.
Helm credential configuration k8s/helm/commonly/values.yaml, k8s/helm/commonly/values-dev.yaml, k8s/helm/commonly/templates/secrets/api-keys.yaml, k8s/helm/commonly/templates/core/backend-deployment.yaml, k8s/helm/commonly/templates/ops/ops-runner-deployment.yaml	Airtable is disabled by default. When enabled, the ExternalSecret template maps its credentials, and both deployments expose the corresponding optional environment variables.

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Feature

Possibly related PRs

• Team-Commonly/commonly#2927: Sets Airtable to use DCR, which this change replaces with a pre-registered client.
• Team-Commonly/commonly#2947: Adds Airtable DCR registration tests, which this change updates to expect registration to be unsupported.
• Team-Commonly/commonly#3165: Changes Airtable visibility in development values, which intersect with this PR’s Airtable Helm configuration.

Merge Risk: Low · up to f2416

The change moves Airtable to a pre-registered client behind a default-off flag. After the flag is enabled and the secrets sync, the backend and ops-runner must be restarted, otherwise Airtable stays unavailable. This is a bounded deploy-step concern and not a code defect, so the PR is mergeable with that follow-up noted.

Pre-merge checks: 4

Check name	Status	Explanation
Title check		The title clearly identifies the main change: Airtable now uses a pre-registered client behind a feature flag.
Description check		The description directly explains the Airtable client change, feature-flag behavior, credential wiring, compatibility impact, and test results.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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Follow-up Comments

Restart the backend and ops-runner after the Airtable keys are added.

451-456: Minor · Stability & Availability · Quick win

Restart the backend and ops-runner after the Airtable keys are added.

Enabling hostedMcp.airtable.enabled changes only the api-keys Secret. The backend and ops-runner pod templates do not change, so a flag-only upgrade does not roll them. Kubernetes reads secretKeyRef variables when a container starts and does not update them later. A pod that started before the keys existed keeps them unset. Because the references are optional: true, the pod still starts, and Airtable keeps returning client_not_configured.

After the Secret syncs, roll out both Deployments: the backend and the ops-runner. A pod-template annotation derived from hostedMcp.airtable.enabled would trigger a rollout when the flag changes. That annotation does not cover a sync that finishes after the pods start, so the restart step is still needed in that case. Do not make the references non-optional: the keys are not rendered when the flag is off, so the backend would fail to start.

Open the source location

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Review comment at @k8s/helm/commonly/templates/core/backend-deployment.yaml
around lines 451 - 456:
Update the backend and ops-runner pod templates to trigger a rollout when
hostedMcp.airtable.enabled changes, while keeping the Airtable secret references
optional. A flag-based annotation will not handle keys synced after pods start,
so preserve the required rollout after the Secret syncs in that case; use the
AIRTABLE_CLIENT_ID reference to locate the backend template.

Review info

Run configuration

• Source mode: Auto
• Repository: Team-Commonly/commonly
• Branch: main
• File: .coderabbit.yaml
• Commit: 486240f
• Layers: Repository YAML
• Review profile: QUIET
• Plan: Advanced
• Run ID: 6bacb756-b275-40ce-87c7-511e88d844b7

Commits

Reviewing files that changed from the base of the PR and between 486240f and f2416e6.

Files selected for processing: 10

• backend/__tests__/service/hostedMcpDcrRegistry.test.js
• backend/__tests__/unit/services/hostedMcpEntry.test.js
• backend/__tests__/unit/services/hostedMcpIntake.test.js
• backend/__tests__/unit/services/installableCatalogService.test.js
• backend/integrations/hostedMcp/airtable.ts
• k8s/helm/commonly/templates/core/backend-deployment.yaml
• k8s/helm/commonly/templates/ops/ops-runner-deployment.yaml
• k8s/helm/commonly/templates/secrets/api-keys.yaml
• k8s/helm/commonly/values-dev.yaml
• k8s/helm/commonly/values.yaml

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[lilyshen0722]

Closing this one, since it's no longer needed. The Airtable "limited to development use" refusal came from the integration's listing in Airtable's Builder Hub, not from how we register. On 11-03 the Cofounder added the support email plus the privacy and terms URLs to the existing integration, and the banner is gone. Prod still uses that same DCR client: the current hosted_mcp_dcr_registrations row for airtable has been live since 10-31 and was never refused. So the pre-registered switch, the chart flag and the SM keys here aren't needed. The named refusal from #3333 stays in place in case Airtable refuses again.

Follow-up, not blocking: that integration lists 7 scopes, including 3 write scopes we never request. Trimming them to our 4 read scopes is a separate settings change in the Builder Hub.

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