GitHub PR Edit (Title/Body/Comments)

Edit PR title/body/comments on Windows. Use gh when available; otherwise use the GitHub REST API.

Before You Start

• Identify:

• owner and repo (e.g. yiyousiow000814/XAUUSD-Calendar-Agent )

• PR number (e.g. 111 )

• If using gh , confirm it is available and authenticated:

gh --version gh auth status

• If the repo is private, unauthenticated GitHub API requests often return 404 Not Found . Treat 404 as “likely unauthorized” unless you are sure the repo/PR does not exist.

Option A (Preferred): GitHub CLI (gh )

If gh is installed and authenticated:

Update title and body (use stdin/body-file to avoid literal \n issues)

@' <markdown body> '@ | gh pr edit 111 --title "chore: ..." --body-file -

Add a comment:

@' Summary:

• ... '@ | gh pr comment 111 --body-file -

Option B: GitHub REST API (PowerShell, no gh )

1. Get an auth token (do not print it)

Preferred sources (pick the first available):

• $env:GITHUB_TOKEN or $env:GH_TOKEN

• Reuse the credential Git already has (works if you previously authenticated with a PAT):

$cred = "protocol=httpsnhost=github.comn`n" | git credential fill $token = (($cred | Select-String -Pattern '^password=').Line).Substring(9)

Do not Write-Host $token , do not log headers.

2. Build headers (minimal)

$headers = @{ Authorization = "token $token" 'User-Agent' = 'codex-cli' Accept = 'application/vnd.github+json' }

3. Sanity check auth (useful when you see 404)

Invoke-RestMethod -Method Get -Uri "https://api.github.com/repos/&#x3C;owner>/&#x3C;repo>" -Headers $headers | Select-Object full_name, private

If this fails with 404 , your token likely lacks access.

4. Update PR title/body

Use UTF-8 bytes for reliable encoding (Chinese text, punctuation).

$payload = @{ title = 'chore: ...' body = @" Summary:

• ... "@ } | ConvertTo-Json -Depth 5

$bytes = [System.Text.Encoding]::UTF8.GetBytes($payload)

Invoke-RestMethod -Method Patch -Uri "https://api.github.com/repos/<owner>/<repo>/pulls/<number>" -Headers $headers -ContentType 'application/json; charset=utf-8' -Body $bytes

5. Add a PR comment (optional)

PR comments are issue comments:

$payload = @{ body = "Summary:`n- ..." } | ConvertTo-Json -Depth 5 $bytes = [System.Text.Encoding]::UTF8.GetBytes($payload)

Invoke-RestMethod -Method Post -Uri "https://api.github.com/repos/<owner>/<repo>/issues/<number>/comments" -Headers $headers -ContentType 'application/json; charset=utf-8' -Body $bytes

Deterministic Helper Script (Recommended)

Use the bundled script for fewer quoting/encoding mistakes:

• .codex/skills/github-pr-edit/scripts/patch_pr.ps1