Document MCP client editing and deletion

[leemthompo]

⚠️ Don't merge until elastic/kibana#284257 — MCP client and connection deletion UI is in and deployed on serverless

Summary

• Document how to edit an existing MCP OAuth client's name, logo, and redirect URIs.
• Document permanent deletion of revoked MCP clients and application connections based on [UIAM OAuth] Implement delete UI for MCP clients and connections kibana#284257.
• Update the OAuth overview and application-connection management pages to distinguish revocation from deletion.

Closes elastic/docs-content-internal#1617

Source

• [UIAM OAuth] Implement MCP Client editing kibana#282889 — MCP client editing
• [UIAM OAuth] Implement delete UI for MCP clients and connections kibana#284257 — MCP client and connection deletion UI

Generative AI disclosure

1. Did you use a generative AI (GenAI) tool to assist in creating this contribution?

• Yes
• No

Tool and model used: OpenAI Codex (GPT-5) for drafting, source verification, and consistency checks.

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🔍 Preview links for changed docs

• deploy-manage/app-connections.md
• deploy-manage/app-connections/create-oauth-client.md
• deploy-manage/app-connections/manage-app-connections.md
• deploy-manage/app-connections/oauth-clients.md
• deploy-manage/app-connections/revoke-oauth-client.md

[shainaraskas]

🏁 with nits

[shainaraskas]

duplicating the requirements of these fields here feels like a recipe for breakage. consider trimming?

also the flow for uri editing is more than "enter"

Suggested change

	6. Edit any of the following fields:
	- **Name**: Enter a name with no more than 128 characters.
	- **Client logo (optional)**: Select a provided logo, upload a PNG, JPEG, or GIF of up to 192 KB, or remove the existing logo.
	- **Redirect URI type**: Select **Local** or **Remote**, and then enter at least one redirect URI. Local clients support up to 20 redirect URIs. Remote clients support one HTTPS redirect URI. Each URI can contain up to 2,048 characters.
	6. Edit any of the following fields:
	- **Name**: Enter a name with no more than 128 characters.
	- **Client logo (optional)**: Select a provided logo, upload a PNG, JPEG, or GIF of up to 192 KB, or remove the existing logo.
	- **Redirect URI type**: Select **Local** or **Remote**, and then add, remove, or edit an existing redirect URI. Local clients support up to 20 redirect URIs. Remote clients support one HTTPS redirect URI. Each URI can contain up to 2,048 characters.

[leemthompo]

Moved the shared constraints to the create procedure as the canonical source of truth and linked to it from the edit task. The URI guidance now covers adding, removing, and editing. 0fbde8833

[leemthompo]

@shainaraskas assigning this to you because we can't merge it until next week 🙏

[shainaraskas]

@leemthompo how strongly do you feel about these limits being included in the docs? imo this is unnecessary detail because the ui enforces the limits

[leemthompo]

overkill 💯