docs: document built-in tool rate limiting [PLT-2390] - #1138
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iherdt
enabled auto-merge (squash)
August 21, 2026 22:51
evantahler
approved these changes
Aug 24, 2026
| | `CHECK_FAILED` | Deny the operation; `error_message` is shown to the agent | | ||
| | `RATE_LIMIT_EXCEEDED` | Deny with rate-limit semantics | | ||
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| For per-tool call caps that need no webhook server, Arcade also enforces [built-in rate limits](/operate/governance/contextual-access/rate-limiting). |
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| For per-tool call caps that need no webhook server, Arcade also enforces [built-in rate limits](/operate/governance/contextual-access/rate-limiting). | |
| For per-tool call caps that need no webhook server, Arcade also offers [built-in rate limits](/operate/governance/contextual-access/rate-limiting). |
…miting-docs # Conflicts: # public/llms.txt
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What
Adds a public docs page for the Engine's built-in tool rate limiting under Contextual Access, plus navigation and cross-links:
app/en/operate/governance/contextual-access/rate-limiting/page.mdxToolkit.*,*), limits, time windows (s,m,h,d,mo)plugin_type: "rate_limit"), org and project scopeallow_on_unavailable_meta.tsx, card on the Contextual Access index, cross-link from Build Your OwnWhy
Rate limiting shipped in the Engine and the Dashboard, but there was no public documentation for configuring it. Closes the docs gap tracked in PLT-2390.
Verification
apps/engine/pkg/plugins/ratelimit/), API schemas, and route registration in ArcadeAI/monorepoNote
Low Risk
Documentation-only changes with no runtime or API behavior modifications.
Overview
Adds public documentation for Engine-native tool rate limits under Contextual Access, covering configuration and enforcement behavior without a custom webhook.
A new Rate Limiting page explains rule matchers (exact, toolkit, global), time windows, pre-execution enforcement, UTC fixed windows, most-specific-rule wins, per-tool and org/project scoping (shared across users), agent-facing denial messages, Dashboard setup, and
plugin_type: "rate_limit"via the plugins API—including fail-closed behavior when limits cannot be verified and per-ruleallow_on_unavailable.Navigation is wired through sidebar
_meta, a card on the Contextual Access hub, a cross-link from Build Your Own (contrasting webhookRATE_LIMIT_EXCEEDEDwith built-in caps), and an entry inpublic/llms.txt.Reviewed by Cursor Bugbot for commit b7a1467. Bugbot is set up for automated code reviews on this repo. Configure here.