[Code Quality] Add Security Rationale Section to Permissions Documentation

[github-actions]

Description

The User Experience Analysis Report (Discussion #13799) identified a documentation gap in docs/src/content/docs/reference/permissions.md:

• Technical details are comprehensive
• Missing "Why This Model?" section explaining security rationale
• Enterprise users need to understand business value for security discussions

Problem

The permissions documentation jumps directly into technical implementation without establishing:

• Why the read-only model exists
• Security benefits for enterprise environments
• How to communicate value to security/compliance teams

This creates barriers when developers need to justify the architecture to stakeholders.

Suggested Changes

Add a new section after line 29 (after "This model prevents AI agents from accidentally or maliciously modifying repository content during execution."):

### Why This Model?

In enterprise environments, AI agents require careful security controls:

- **Audit Trail**: Separating read (agent) from write (safe outputs) provides clear accountability for all changes
- **Blast Radius Containment**: If an agent misbehaves, it cannot modify code, merge PRs, or delete resources
- **Compliance**: Many organizations require approval workflows for automated changes - safe outputs provide the approval gate
- **Defense in Depth**: Even if prompt injection occurs, the agent cannot perform destructive actions

This model trades convenience for enterprise-grade security. Safe outputs add one extra job but provide critical safety guarantees.

Files Affected

• docs/src/content/docs/reference/permissions.md (single file change)

Success Criteria

• New "Why This Model?" section added between lines 29-32
• Content includes 4-6 bullet points covering security rationale
• Professional tone appropriate for enterprise audience
• Documentation quality rating improves from ⚠️ to ✅
• No other files modified

Source

Extracted from User Experience Analysis Report - 2026-02-04

Priority

Medium - Improves enterprise adoption by helping developers communicate security value to compliance teams. High impact for new users evaluating the system.

AI generated by Discussion Task Miner - Code Quality Improvement Agent

• expires on Feb 6, 2026, 5:24 AM UTC