Unbloat engines.md: reduce documentation by 36% while preserving technical content

[Copilot]

Consolidated verbose documentation in docs/src/content/docs/reference/engines.md from 272 to 175 lines (97 lines removed, 35.7% reduction).

Changes

• Configuration sections: Merged "Configuration Options" and "Environment Variables" bullet lists into single prose paragraph
• Authentication flow: Condensed 6-step numbered list into one focused sentence maintaining all critical information (PAT creation URL, permissions, repository secrets)
• Firewall examples: Collapsed 7 redundant configuration examples showing similar patterns into single comprehensive example with inline configuration notes
• YAML comments: Removed redundant "Optional:" prefixes (e.g., # Optional: defaults to latest → # defaults to latest)
• Disabling firewall: Reduced verbose code examples and explanations to concise statements

Example Consolidation

Before:

# Enable with defaults
network:
  firewall: true

# Enable with empty object (same as true)
network:
  firewall:

# Configure log level
network:
  firewall:
    log-level: info

# [4 more similar examples...]

After:

network:
  firewall: true           # or configure: { version, log-level, args }
  allowed:
    - defaults             # infrastructure domains
    - python              # ecosystem identifier

Follows Diátaxis reference documentation style: authoritative, minimal narrative, consistent format.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[docs] Unbloat engines.md documentation</issue_title>
<issue_description>## Summary

Reduced documentation bloat in reference/engines.md by 35.4% (271 → 175 lines, 96 lines removed) while preserving all essential information.

Changes Made

Consolidated Configuration Options

• Converted bullet point lists into concise prose
• Removed redundant "Optional:" annotations from YAML comments
• Streamlined configuration descriptions

Simplified Authentication Section

• Reduced 6-step authentication instructions to a single focused paragraph
• Maintained all critical information (PAT creation, permissions, repository secrets)

Condensed Firewall Configuration

• Consolidated 7 redundant firewall configuration examples into 1 comprehensive example with inline notes
• Reduced "Advanced Firewall Configuration" and "Firewall Configuration Formats" sections
• Simplified "Disabling the Firewall" from 3 code examples to 2 clear sentences

Impact

Before: 271 lines with verbose explanations, excessive bullet points, and redundant examples
After: 175 lines with clear, concise documentation maintaining full technical accuracy

Examples of Improvements

Authentication (Before: 6 bullet points)

1. Visit (url)
2. Under "Resource owner", select...
3. Under "Repository access," select...
4. Under "Permissions," click...
5. Generate your token
6. Add the token to...

Authentication (After: 1 paragraph)

Create a fine-grained PAT at (url). Select your user account (not an organization), 
choose "Public repositories" access, and enable "Copilot Requests" permissions.

Firewall Configuration (Before: 7 separate examples showing similar concepts)
Firewall Configuration (After: 1 example with inline configuration notes)

Screenshot Status

⚠️ Screenshot capture blocked: Encountered network isolation (ERR_BLOCKED_BY_CLIENT) when attempting to capture HD screenshots with Playwright. The local documentation server at `(redacted) was blocked by client-side network policies.

Blocked domains identified during screenshot attempt:

• None - connection was blocked before reaching the documentation site

Technical Details

• File: docs/src/content/docs/reference/engines.md
• Lines reduced: 96 (35.4% reduction)
• No breaking changes - all technical content preserved
• Improved readability and maintainability

AI generated by Documentation Unbloat

---

[!NOTE]
This was originally intended as a pull request, but the git push operation failed.

Workflow Run: View run details and download patch artifact

The patch file is available as an artifact (aw.patch) in the workflow run linked above.
To apply the patch locally:

# Download the artifact from the workflow run https://github.com/githubnext/gh-aw/actions/runs/20340984478
# (Use GitHub MCP tools if gh CLI is not available)
gh run download 20340984478 -n aw.patch
# Apply the patch
git am aw.patch

Show patch preview (197 of 197 lines)

From 8494aee4178a403f3935e0df08805c81e6f51b30 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]" <github-actions[bot]@users.noreply.github.com>
Date: Thu, 18 Dec 2025 14:58:56 +0000
Subject: [PATCH] Unbloat engines.md documentation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reduced documentation bloat in reference/engines.md by consolidating
redundant configuration examples, removing excessive annotations,
and condensing verbose explanations.

Changes:
- Consolidated configuration bullet points into concise prose
- Removed excessive "Optional:" annotations from code comments
- Simplified authentication instructions (6 steps → 1 paragraph)
- Condensed firewall configuration section (7 examples → 1 example with notes)
- Reduced "Disabling the Firewall" section from 3 examples to 2 sentences

Result: 271 lines → 175 lines (35.4% reduction, 96 lines removed)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
---
 docs/src/content/docs/reference/engines.md | 124 +++------------------
 1 file changed, 14 insertions(+), 110 deletions(-)

diff --git a/docs/src/content/docs/reference/engines.md b/docs/src/content/docs/reference/engines.md
index b899040..a6ef980 100644
--- a/docs/src/content/docs/reference/engines.md
+++ b/docs/src/content/docs/reference/engines.md
@@ -24,36 +24,20 @@ engine: copilot
 ```yaml wrap
 engine:
   id: copilot
-  version: latest                       # Optional: defaults to latest
-  model: gpt-5                          # Optional: defaults to claude-sonnet-4
-  args: ["--add-dir", "/workspace"]     # Optional: custom CLI arguments
+  version: latest                      ...

</details>



<!-- START COPILOT CODING AGENT SUFFIX -->

- Fixes githubnext/gh-aw#6873

<!-- START COPILOT CODING AGENT TIPS -->
---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our [2 minute survey](https://gh.io/copilot-coding-agent-survey).