OpenTagViewer: Skill for Claude Code

Reading a bug report before answering it

The failure this exists for is concluding "there is not enough here" while the answer is in the thread. It is not a slower diagnosis; it is asking somebody to send a thing they already sent, then reasoning from a guess while waiting for it.

Two things get missed, and both are invisible in the obvious gh call.

1. Pull the whole thread, not the body

gh issue view <n> prints the body. The diagnosis is often three comments down — a reporter who answered a question, a second person with the same symptom on different hardware, or the reporter correcting their own title.

gh issue view <n> --json number,title,author,createdAt,state,labels,body,comments \
  --jq '"#\(.number) \(.title)\nby \(.author.login) at \(.createdAt)  [\(.state)]\n\n\(.body)\n\n--- COMMENTS ---\n"
        + ([.comments[] | "[\(.author.login) \(.createdAt)]\n\(.body)"] | join("\n\n"))'

gh issue view <n> --comments has come back empty here on an issue that has comments, which is why the --json form is the one written down. A blank result from the convenience flag is not evidence the thread is empty — check with the JSON before believing it.

2. Read the images. This is the one that gets skipped

This is a phone app, so its errors arrive on a screen, so that is how they get reported. The template's log field and "what happened" field are routinely empty while a screenshot carries the whole thing — pasting a screenshot is one gesture, capturing a log is a menu, a file and a decision about what to redact.

gh gives you the URL, not the picture, and an <img> tag sitting in a body reads like decoration next to prose. A report whose fields are blank is not a report with nothing in it. It is one where everything is in the attachment.

Then download each one and Read it. The Read tool renders an image, but only from a local path — there is no fetching an image straight from a URL:

curl -sL -o "$SCRATCH/shot1.png" "https://github.com/user-attachments/assets/<id>"
file "$SCRATCH/shot1.png"    # confirm it is a PNG and not an HTML error page