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Optimize SC2002 useless cat patterns in analysis workflows#3547

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pelikhan merged 2 commits intomainfrom
copilot/optimize-cat-patterns-workflows
Nov 9, 2025
Merged

Optimize SC2002 useless cat patterns in analysis workflows#3547
pelikhan merged 2 commits intomainfrom
copilot/optimize-cat-patterns-workflows

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Copilot AI commented Nov 9, 2025

Replace inefficient cat file | command patterns with direct input redirection in three workflow files, eliminating SC2002 shellcheck warnings.

Changes

  • copilot-agent-analysis.md (line 70)
  • copilot-pr-prompt-analysis.md (line 67)
  • prompt-clustering-analysis.md (line 72)

All instances of:

cat /tmp/gh-aw/pr-data/copilot-prs.json | /tmp/gh-aw/jqschema.sh > output.json

Replaced with:

/tmp/gh-aw/jqschema.sh < /tmp/gh-aw/pr-data/copilot-prs.json > output.json

This eliminates unnecessary process spawning while preserving identical functionality.

Original prompt

This section details on the original issue you should resolve

<issue_title>[task] Optimize SC2002 useless cat patterns in analysis workflows</issue_title>
<issue_description>## Objective
Optimize cat file | command patterns to more efficient command < file syntax in three analysis workflows.

Context

Static analysis identified 3 instances of SC2002 ("Useless cat. Consider 'cmd < file | ..' or 'cmd file | ..' instead"). While not a security issue, this is a code style improvement that can reduce unnecessary process overhead.

Related to discussion #3527.

Approach

  1. Review the following workflows:
    • copilot-agent-analysis
    • copilot-pr-prompt-analysis
    • prompt-clustering-analysis
  2. Locate cat file | command patterns
  3. Replace with more efficient alternatives:
    • command < file (if command reads from stdin)
    • command file (if command accepts file argument)
  4. Verify commands still work with new syntax

Files to Modify

  • .github/workflows/copilot-agent-analysis.md
  • .github/workflows/copilot-pr-prompt-analysis.md
  • .github/workflows/prompt-clustering-analysis.md

Acceptance Criteria

  • All useless cat patterns replaced with efficient alternatives
  • Run gh aw compile --actionlint on each workflow shows no SC2002 warnings
  • Workflows compile successfully
  • Functionality preserved (verify with test runs if possible)

Impact

Eliminates 3 code style warnings and slightly improves workflow efficiency.
Related to #3527

AI generated by Plan Command for discussion #3527</issue_description>

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Copilot AI self-assigned this Nov 9, 2025
…flows

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
Copilot AI changed the title [WIP] Optimize cat patterns in analysis workflows Optimize SC2002 useless cat patterns in analysis workflows Nov 9, 2025
Copilot AI requested a review from pelikhan November 9, 2025 19:25
@pelikhan pelikhan marked this pull request as ready for review November 9, 2025 19:32
Copilot AI review requested due to automatic review settings November 9, 2025 19:32
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Pull Request Overview

This PR improves shell script efficiency by replacing the anti-pattern cat file | command with the more idiomatic input redirection pattern command < file across multiple workflow files. The change specifically affects how the jqschema.sh utility script receives input from JSON files.

Key Changes

  • Replaced cat /tmp/gh-aw/pr-data/copilot-prs.json | /tmp/gh-aw/jqschema.sh with /tmp/gh-aw/jqschema.sh < /tmp/gh-aw/pr-data/copilot-prs.json in workflow scripts
  • Applied the change consistently across both source markdown files and their compiled YAML lock files

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file
File Description
.github/workflows/prompt-clustering-analysis.md Updated jqschema.sh invocation to use input redirection instead of pipe
.github/workflows/prompt-clustering-analysis.lock.yml Compiled version of the above workflow with the same improvement
.github/workflows/copilot-pr-prompt-analysis.md Updated jqschema.sh invocation to use input redirection instead of pipe
.github/workflows/copilot-pr-prompt-analysis.lock.yml Compiled version of the above workflow with the same improvement
.github/workflows/copilot-agent-analysis.md Updated jqschema.sh invocation to use input redirection instead of pipe
.github/workflows/copilot-agent-analysis.lock.yml Compiled version of the above workflow with the same improvement

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@pelikhan pelikhan merged commit 8abd9cd into main Nov 9, 2025
84 of 88 checks passed
@pelikhan pelikhan deleted the copilot/optimize-cat-patterns-workflows branch November 9, 2025 21:58
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[task] Optimize SC2002 useless cat patterns in analysis workflows

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