Skip to content

The gateway's -41002 example was stale, and understated what the client does #42

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
arpanghoshal merged 1 commit into from
Sep 15, 2026
Merged

The gateway's -41002 example was stale, and understated what the client does #42

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 11 additions & 2 deletions docs/mcp/gateway-in-5-minutes.mdx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -73,14 +73,23 @@ accepts `2025-11-25`, `2025-06-18` and `2025-03-26`.

```json
{"jsonrpc": "2.0", "id": 13,
"error": {"code": -41002, "message": "mcp.ops.delete_namespace: a human must approve",
"data": {"error": "ctrlrun.approval_required", "request_id": "apr_…"}}}
"error": {"code": -41002,
"message": "mcp.ops.delete_namespace requires approval: a human runs
'ctrlrun approve apr_…', then this same call runs",
"data": {"error": "ctrlrun.approval_required", "request_id": "apr_…",
"action_hash": "sha256:…", "expires_at": "…"}}}
```

A human runs `ctrlrun approve apr_…`, or answers in Slack through the webhook, and the
agent's next identical call runs. A different call, a different namespace, a different
cluster, does not: the approval is bound to the hash of what the human saw.

**There is nothing for the client to do differently on the retry.** It re-sends the same
`tools/call`. The decorator has a second step here -- `ctrlrun.with_approval(...)` -- and
this path does not, because the gateway finds the granted approval by the action's hash.
Until v0.12 the error text said otherwise: it carried the decorator's wording verbatim and
sent clients, in any language, looking for a Python context manager.

| Code | Token | HTTP | Meaning |
|---|---|---|---|
| `-41001` | `ctrlrun.denied` | 403 | the policy denies this action for everyone |
Expand Down