Skill

gcoc-2nd

Provides advisory second opinion on code plans using GitHub Copilot CLI's free gpt-4.1 model. Use when premium quota exhausted, user requests cheap mode, or plans are simple.

Bash

Node

Github

developer-tools

code-quality

npx claudepluginhub takazudo/claude-resources

Tool Access

This skill is limited to using the following tools:

Bash(bash *)Bash(timeout *)Bash(gtimeout *)Bash(node *)

Preview

Same behavior as [/gco-2nd](../gco-2nd/SKILL.md) — advisory second opinion on a plan or approach — but forces `gpt-4.1` from the start. No Premium Requests consumed.

SKILL.md

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Last CommitMay 7, 2026

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GCOC 2nd Opinion (Cheap)

Same behavior as /gco-2nd — advisory second opinion on a plan or approach — but forces gpt-4.1 from the start. No Premium Requests consumed.

How It Differs from /gco-2nd

Model: gpt-4.1 (forced via GCO_MODEL=gpt-4.1)

Skip the GCO_USED_FALLBACK= stderr check — it's the user's deliberate choice, not a fallback

Process

Follow the exact same process as /gco-2nd.

Step 1: Build Context Prompt

Same prompt structure as /gco-2nd — context, current plan, questions about risks / alternatives / missing areas / other suggestions.

Step 2: Run Copilot with forced cheap model

LOGDIR=$(node $HOME/.claude/scripts/get-logdir.js) mkdir -p "$LOGDIR" DATETIME=$(date +%Y%m%d_%H%M%S) GCO_MODEL=gpt-4.1 \ bash $HOME/.claude/skills/gco/scripts/gco-run.sh \ "<prompt>" \ "$LOGDIR/${DATETIME}-gcoc-2nd.md" \ "$LOGDIR/${DATETIME}-gcoc-2nd-stderr.log"

Timeout: 15 minutes.

Step 3: Collect Results

Read the output file

If empty or missing, check stderr log for errors

If Copilot timed out or produced no output, skip — the plan proceeds without the second opinion

Do NOT check for GCO_USED_FALLBACK= marker — the cheap model is intentional

Step 4: Return Feedback

Return the Copilot feedback to the caller. The caller decides whether to incorporate it.

No fallback needed. Advisory only — if Copilot fails, skip silently.

Important Notes

Copilot reads workspace files for context — no need to paste file contents into the prompt

All file writing done by Claude Code, never by Copilot

This is advisory — never block the workflow if Copilot is unresponsive

gpt-4.1 has zero Premium multiplier on the Pro plan — safe to use when quota is tight

NEVER use ~ in paths — use $HOME