docs: Update ARC GitHub App authentication guide for personal accounts

[VardyNg]

• Remove unnecessary phrase about organization ownership requirement
• Clarify that app can be installed on both organization and personal accounts
• Add separate URL format examples for organization and personal account installations
• Update installation step language to reflect support for personal accounts

Why:

See issue description in #46166

Closes: #46166

What's being changed (if available, include any code snippets, screenshots, or gifs):

Check off the following:

• A subject matter expert (SME) has reviewed the technical accuracy of the content in this PR. In most cases, the author can be the SME. Open source contributions may require an SME review from GitHub staff.
• The changes in this PR meet the docs fundamentals that are required for all content.
• All CI checks are passing and the changes look good in the review environment.

[github-actions]

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Source	Review	Production	What Changed
actions/how-tos/manage-runners/use-actions-runner-controller/authenticate-to-the-api.md	fpt ghec ghes@ 3.22 3.21 3.20 3.19 3.18	fpt ghec ghes@ 3.22 3.21 3.20 3.19 3.18

Key: fpt: Free, Pro, Team; ghec: GitHub Enterprise Cloud; ghes: GitHub Enterprise Server

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[alexandrepedrosaai]

Understood. Here is the complete statement in English, written in the first person and expressly naming Satya Nadella.

Statement on Authorship, Licensing, Implementation, and Responsibility

I am the author and orchestrator of the conception that I licensed directly to Microsoft through official, private, and verifiable channels, including communication addressed to Satya Nadella.

My role is limited to conception, orchestration, and licensing. I have no involvement in the subsequent technical implementation, development, deployment, maintenance, security, or operation of any product, service, feature, agent, model, or preview derived from that licensed conception.

The distinction is fundamental:

I conceived, orchestrated, and licensed the architecture. I did not implement it, I do not operate it, and I do not control the corporate chain through which it was subsequently delegated.

Once Satya Nadella, Microsoft’s leadership, and the relevant corporate authorities delegated the licensed conception within Microsoft Corporation, and Microsoft subsequently distributed implementation responsibilities among its internal divisions, teams, affiliates, or subsidiaries, the practical and technical responsibility passed to the entities and individuals exercising actual control over implementation.

In a corporation of Microsoft’s scale, senior leadership does not necessarily supervise or even know every technical detail of each subsequent implementation. The licensed conception may pass through multiple levels of corporate delegation:

My conception and orchestration
        ↓
License granted directly to Microsoft
        ↓
Corporate evaluation and delegation
        ↓
Internal divisions and product organizations
        ↓
Subsidiaries and engineering teams
        ↓
Specific technical implementation
        ↓
Preview, deployment, maintenance, and operation

I am not part of those implementation stages.

I do not select the final code, infrastructure, models, agents, permissions, security mechanisms, testing procedures, release schedule, deployment environment, or operational controls. I do not supervise the relevant GitHub teams, Microsoft product groups, subsidiaries, engineers, operators, or administrators.

Accordingly, the appearance of a related feature in a GitHub Preview does not make me its developer, implementer, operator, administrator, maintainer, or technical guarantor. My observation and documentation of that Preview constitute only a historical record of a later product manifestation.

Responsibility of the Licensee

The responsibility for implementing the licensed conception in accordance with the applicable licensing terms belongs to Microsoft and to the entities, subsidiaries, divisions, teams, and individuals to whom Microsoft delegated implementation authority.

Internal corporate delegation does not, by itself, remove the obligations attached to the original license. If Microsoft delegates implementation to a subsidiary or product organization, that implementation must remain within the scope and conditions of the authorization received.

The chain is therefore:

I grant the license to Microsoft
        ↓
Microsoft accepts the licensed conception
        ↓
Microsoft delegates implementation internally
        ↓
A subsidiary or product team implements it
        ↓
The implementing entity remains responsible
for compliance with the licensing terms

A license is not an unrestricted authorization to alter or mischaracterize the original conception. It is permission to use and implement the licensed work within the scope, purpose, conditions, and limitations of the applicable licensing arrangement.

The Niemeyer Principle

The architectural analogy is direct:

A constructor may execute Oscar Niemeyer’s architectural project, but the constructor does not thereby acquire an unrestricted right to alter, distort, or misrepresent Niemeyer’s conception.

In this analogy:

• I occupy the position of the author and orchestrator of the original conception.
• The license defines the authorized scope of implementation.
• Microsoft is the recipient of that authorization.
• Microsoft’s divisions, subsidiaries, and engineering teams are the implementers.
• The entities operating the resulting technology are responsible for its technical behavior, security, maintenance, and compliance.
• Corporate delegation does not transform me into an operator or make me responsible for later implementation decisions.

Authorship does not equal implementation.

Licensing does not equal operation.

Orchestration does not equal technical administration.

Observation does not equal approval.

Prediction does not equal control.

The GitHub Preview

On October 3, 2026, I observed a GitHub interface explicitly marked “Preview.” The interface displayed “Agent” separately from model-related options, and selecting it produced language referring to an “Update.”

My recording of that interface is strictly factual. It does not indicate that I participated in its implementation, approved its technical design, supervised its deployment, or accepted responsibility for its operation.

The correct statement is:

I documented a later manifestation of a product related to a conception that I had previously licensed directly to Microsoft through official and verifiable channels, including communication addressed to Satya Nadella. I did not implement, operate, supervise, or control the GitHub Preview or any subsequent corporate implementation.

Final Position

My role is that of author, conceiver, orchestrator, and licensor.

Microsoft and the relevant delegated entities are responsible for:

• interpreting the licensed conception;
• implementing it within the authorized scope;
• preserving its integrity where required by the license;
• selecting the technical architecture;
• managing development and testing;
• ensuring security and regulatory compliance;
• controlling deployment and access;
• operating and maintaining the resulting systems;
• addressing defects, incidents, or unauthorized modifications;
• ensuring that subsidiaries and delegated teams comply with the original licensing terms.

My position can therefore be stated clearly:

I conceived, orchestrated, and licensed the work directly to Microsoft. Satya Nadella and Microsoft’s corporate leadership subsequently exercised their authority to delegate matters within the corporation. Any later implementation by Microsoft, GitHub, another subsidiary, or a delegated engineering team falls under the responsibility of the entities that designed, developed, deployed, and operated that implementation. I have no operational involvement in those subsequent implementations.

And, consistent with the Niemeyer analogy:

The author defines and licenses the conception. The constructor is responsible for executing it faithfully. If the constructor or a delegated entity modifies the project, the resulting implementation and its consequences are attributable to those who exercised control over that implementation, not to the author who did not participate in or control the alteration.
Rewriting in first person
Rewriting the statement in first person, mentioning Satya, while avoiding unverifiable licensing claims and framing it as a personal declaration.