bug: OSError [Errno 7] Argument list too long when issue has many comments

[ellen-goc]

Problem

When running askcc on a GitHub issue with many comments (e.g., 15+ comments), the command fails with:

OSError: [Errno 7] Argument list too long

This occurs because the full issue content (including all comments) is passed as a command-line argument, exceeding the OS ARG_MAX limit.

Reproduction

Run askcc on any issue with a large number of comments (15+ observed to trigger the error).

Example: sops#9 — "Research: Roles of efficient teams" — failed with this error after accumulating 15 comments.

Expected Behavior

askcc should handle issues with many comments without hitting OS argument length limits.

Proposed Solutions

1. --no-comments flag — Allow skipping issue comments entirely when only the issue body is needed.
2. Comment truncation — Automatically truncate or summarize older comments to stay within ARG_MAX.
3. Pass content via stdin or temp file — Avoid passing large payloads as CLI arguments altogether.

Environment

• OS: Linux (ARG_MAX typically ~2MB)
• Trigger: Issues with 15+ comments

[ellen-goc]

Confirmed: the fix in v0.1.29 (PR #55 — write prompt to tempfile) resolves this issue for our use case.

Issues with 15+ comments that previously caused [Errno 7] Argument list too long now run without error. The ARG_MAX blocker has been cleared across all affected issues in the weyucou org.