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docs: add PowerShell string interpolation patterns#569

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rjmurillo merged 1 commit into
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docs/84-powershell-patterns
Dec 30, 2025
Merged

docs: add PowerShell string interpolation patterns#569
rjmurillo merged 1 commit into
mainfrom
docs/84-powershell-patterns

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Pull Request

Summary

Updates the PowerShell patterns steering file from placeholder to comprehensive coding standards documentation, focusing on string interpolation safety and other common patterns.

Specification References

Type Reference Description
Issue Closes #84 Document PowerShell string interpolation best practices
Spec N/A Documentation - no spec required

Changes

Updated .agents/steering/powershell-patterns.md with:

  • String Interpolation Safety: Scope qualifier ambiguity and safe alternatives
  • Here-String Syntax: Terminator position requirements
  • Parameter Conventions: Approved verbs and validation patterns
  • Error Handling: Standard try/catch pattern with exit codes
  • Anti-Patterns: Common mistakes to avoid with refactoring examples
  • Module Structure: Standard layout and export patterns
  • Comment-Based Help: Template for function documentation

Type of Change

  • Bug fix (non-breaking change fixing an issue)
  • New feature (non-breaking change adding functionality)
  • Breaking change (fix or feature causing existing functionality to change)
  • Documentation update
  • Infrastructure/CI change
  • Refactoring (no functional changes)

Testing

  • Tests added/updated
  • Manual testing completed
  • No testing required (documentation only)

Agent Review

Security Review

  • No security-critical changes in this PR

Other Agent Reviews

  • QA verified documentation completeness

Checklist

  • Code follows project style guidelines
  • Self-review completed
  • Comments added for complex logic
  • Documentation updated (if applicable)
  • No new warnings introduced

Related Issues

Closes #84


🤖 Generated with Claude Code

Update steering file with comprehensive patterns including:
- String interpolation safety (scope qualifier ambiguity)
- Here-string syntax requirements
- Parameter validation conventions
- Error handling patterns
- Exit code standards
- Anti-patterns to avoid
- Module structure guidelines

Content derived from PR #79 retrospective and Serena memory.

Closes #84

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Note

Gemini is unable to generate a review for this pull request due to the file types involved not being currently supported.

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📥 Commits

Reviewing files that changed from the base of the PR and between 8564bf7 and 22b581f.

📒 Files selected for processing (1)
  • .agents/steering/powershell-patterns.md
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PR Validation Report

Tip

Status: PASS

Description Validation

Check Status
Description matches diff PASS

QA Validation

Check Status
Code changes detected False
QA report exists N/A

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AI Quality Gate Review

Tip

Final Verdict: PASS

Walkthrough

This PR was reviewed by six AI agents in parallel, analyzing different aspects of the changes:

  • Security Agent: Scans for vulnerabilities, secrets exposure, and security anti-patterns
  • QA Agent: Evaluates test coverage, error handling, and code quality
  • Analyst Agent: Assesses code quality, impact analysis, and maintainability
  • Architect Agent: Reviews design patterns, system boundaries, and architectural concerns
  • DevOps Agent: Evaluates CI/CD, build pipelines, and infrastructure changes
  • Roadmap Agent: Assesses strategic alignment, feature scope, and user value

Review Summary

Agent Verdict Category Status
Security PASS N/A
QA PASS N/A
Analyst PASS N/A
Architect PASS N/A
DevOps PASS N/A
Roadmap PASS N/A

💡 Quick Access: Click on individual agent jobs (e.g., "🔒 security Review", "🧪 qa Review") in the workflow run to see detailed findings and step summaries.

Analyst Review Details

Code Quality Score

Criterion Score (1-5) Notes
Readability 5 Clear headings, examples, tables. Progressive disclosure from problem to solution.
Maintainability 5 Well-structured sections. Easy to add new patterns.
Consistency 5 Matches existing steering file format (YAML front matter, markdown structure).
Simplicity 5 Concise patterns with actionable examples. No over-engineering.

Overall: 5/5

Impact Assessment

  • Scope: Isolated (single documentation file)
  • Risk Level: Low (documentation only, no code changes)
  • Affected Components: .agents/steering/powershell-patterns.md

Findings

Priority Category Finding Location
Low Documentation References ADR-032 which is marked as "pending" - may need follow-up Line 131, 241
Low Documentation References Serena memories that should be verified as existing Line 239-240

Recommendations

  1. Verify ADR-032 exists or note its pending status in the Related Resources section more prominently.
  2. The content addresses a real problem observed in PR fix: correct PowerShell variable interpolation in Get-PRContext.ps1 error message #79 (string interpolation causing syntax errors). The examples are practical and directly applicable.

Verdict

VERDICT: PASS
MESSAGE: High-quality documentation upgrade from placeholder to comprehensive PowerShell patterns. Content is technically accurate, well-structured, and addresses real issues observed in prior PRs.
Security Review Details

Security Review: PR - PowerShell String Interpolation Patterns

PR Type Detection

Category: DOCS

All changed files:

  • .agents/steering/powershell-patterns.md - Documentation/steering file

This PR updates a documentation file that provides coding standards guidance. It contains no executable code, no workflow changes, no configuration changes.

Analysis

Check Result
Hardcoded secrets None found
API keys/tokens None found
Sensitive data exposure None found
Executable code Code examples only (documentation)
Workflow changes None
Config changes None

Findings

Severity Category Finding Location CWE
- - No security issues identified - -

The file contains:

  • PowerShell code examples for documentation purposes
  • No executable scripts
  • No hardcoded credentials
  • No sensitive configuration
  • Example code demonstrates secure patterns (parameter validation, error handling)

Recommendations

None. The documentation promotes secure coding practices including:

  • Input validation patterns
  • Error handling standards
  • Avoiding hardcoded paths

Verdict

VERDICT: PASS
MESSAGE: Documentation-only PR with no security-sensitive content. File contains PowerShell coding standards and example patterns that promote secure development practices.
Architect Review Details

The PR updates a steering documentation file from placeholder to active status. Let me verify this is purely documentation with no architectural implications.

Design Quality Assessment

Aspect Rating (1-5) Notes
Pattern Adherence 5 Documents established PowerShell patterns correctly
Boundary Respect 5 Stays within steering documentation scope
Coupling N/A Documentation only
Cohesion 5 Single responsibility: PowerShell coding standards
Extensibility 5 Pattern catalog can grow without breaking changes

Overall Design Score: 5/5

Architectural Concerns

Severity Concern Location Recommendation
Low Reference to ADR-032 does not exist Line 140 Add "(pending)" note or remove reference until ADR exists

The file references "ADR-032: Exit code standardization (pending)" which is appropriate since it notes the pending status.

Breaking Change Assessment

  • Breaking Changes: No
  • Impact Scope: None
  • Migration Required: No
  • Migration Path: N/A

Technical Debt Analysis

  • Debt Added: None
  • Debt Reduced: Low (replaces placeholder with actionable standards)
  • Net Impact: Improved

ADR Assessment

  • ADR Required: No
  • Decisions Identified: None - this documents existing patterns, not new architectural decisions
  • Existing ADR: ADR-005-powershell-only-scripting.md governs PowerShell adoption
  • Recommendation: N/A

The steering file codifies best practices rather than making new architectural decisions. Exit code standardization (referenced as pending ADR-032) would be appropriate as a future ADR when formalized.

Recommendations

  1. None required. The documentation is well-structured and follows established steering file patterns.

Verdict

VERDICT: PASS
MESSAGE: Documentation-only change. Converts placeholder steering file to comprehensive PowerShell coding standards. No architectural decisions introduced. Aligns with ADR-005 (PowerShell-only scripting).
QA Review Details

Based on the diff provided in the PR context, I can perform the QA review.


QA Review: PR - docs: add PowerShell string interpolation patterns

VERDICT: PASS
MESSAGE: Documentation-only change with valid content and no broken links.

PR TYPE: DOCS
FILES: 
- DOCS: .agents/steering/powershell-patterns.md

EVIDENCE:
- Tests found: N/A - DOCS only
- Edge cases: N/A
- Error handling: N/A
- Blocking issues: 0

PR Type Classification

PR TYPE: DOCS

FILES:

Category Files
DOCS .agents/steering/powershell-patterns.md

Per QA guidelines: "Files without executable logic do not require tests" and "If ALL changed files are DOCS, skip test coverage sections and use PASS unless broken links or syntax errors exist."

Documentation Quality Review

Check Status Evidence
Markdown syntax [PASS] Valid headings, code blocks, tables
Code block fencing [PASS] All examples use powershell language specifier
Internal links [PASS] References to ADR-032, PSScriptAnalyzer are contextual notes
Front matter [PASS] Valid YAML: version bumped 0.1.0→1.0.0, status placeholder→active
Heading hierarchy [PASS] Proper progression from H1 to H2 to H3

Content Review

The documentation covers:

  • String interpolation safety (scope qualifier ambiguity)
  • Here-string syntax requirements
  • Parameter conventions with validation examples
  • Error handling patterns
  • Anti-patterns with refactoring examples
  • Module structure and export patterns
  • Comment-based help template

Quality Concerns

Severity Issue Location Evidence Required Fix
LOW ADR-032 referenced as "pending" Line 149 See ADR-032: Exit code standardization (pending) Track in backlog

Regression Risk Assessment

  • Risk Level: Low (documentation only, no executable code)
  • Affected Components: None (steering documentation)
  • Breaking Changes: None
  • Required Testing: None
Roadmap Review Details

Strategic Alignment Assessment

Criterion Rating Notes
Aligns with project goals High Agent system requires documented PowerShell patterns for implementer quality
Priority appropriate High Issue #84 requested this; addresses known gap from PR #79 retrospective
User value clear High Prevents string interpolation bugs, standardizes patterns across contributors
Investment justified High Documentation only; zero runtime cost, high prevention value

Feature Completeness

  • Scope Assessment: Right-sized
  • Ship Ready: Yes
  • MVP Complete: Yes
  • Enhancement Opportunities: Could add PSScriptAnalyzer rule mappings in future iteration

Impact Analysis

Dimension Assessment Notes
User Value High Prevents real bugs (PR #79 string interpolation issue documented)
Business Impact Medium Improves contributor onboarding, reduces debugging time
Technical Leverage High Steering files apply automatically to all .ps1/.psm1 files
Competitive Position Neutral Internal quality improvement

Concerns

Priority Concern Recommendation
Low ADR-032 referenced but marked "pending" Acceptable for documentation to reference future work
Low No automated enforcement mentioned beyond PSScriptAnalyzer Consider adding pre-commit hook reference in future

Recommendations

  1. Merge as-is. The content directly addresses Issue docs: Document PowerShell string interpolation best practices #84 and captures learnings from PR fix: correct PowerShell variable interpolation in Get-PRContext.ps1 error message #79 retrospective.
  2. The steering file structure follows existing patterns in .agents/steering/.
  3. Future enhancement: Add PSScriptAnalyzer custom rules to enforce these patterns programmatically.

Verdict

VERDICT: PASS
MESSAGE: Documentation closes Issue #84, captures real bug patterns from PR #79, and provides actionable standards for PowerShell development. No strategic concerns.
DevOps Review Details

DevOps Review: PR Documentation Update

PR Scope Detection

Category: DOCS

Changed files: .agents/steering/powershell-patterns.md (Markdown documentation)

This is a documentation-only PR updating a steering file with PowerShell coding standards. Per review scope detection, DevOps review scope is None required.


Pipeline Impact Assessment

Area Impact Notes
Build None No build files changed
Test None No test configuration changed
Deploy None No deployment config changed
Cost None No CI/CD execution impact

CI/CD Quality Checks

Check Status Location
Workflow changes N/A No workflow files modified
Actions pinned N/A No actions modified
Secrets secure N/A No secrets handling
Permissions minimal N/A No permission changes
Shell scripts robust N/A No shell scripts modified

Findings

Severity Category Finding Location Fix
- - No DevOps-relevant changes - -

Template Assessment

  • PR Template: Adequate (PR description follows template)
  • Issue Templates: Not modified
  • Template Issues: None

Automation Opportunities

No automation opportunities identified. This PR documents PowerShell patterns that will improve script quality in future PRs.

Recommendations

  1. None required for this documentation PR.

Verdict

VERDICT: PASS
MESSAGE: Documentation-only PR. No CI/CD, workflow, or infrastructure changes. Content is well-structured PowerShell guidance that will improve future script quality.

Run Details
Property Value
Run ID 20597965157
Triggered by pull_request on 569/merge
Commit 7ac0ddd7dab5f55fa31a430f7370539c9e2ba9af

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@rjmurillo rjmurillo enabled auto-merge (squash) December 30, 2025 16:13
@rjmurillo rjmurillo merged commit a424262 into main Dec 30, 2025
28 of 29 checks passed
@rjmurillo rjmurillo deleted the docs/84-powershell-patterns branch December 30, 2025 16:14
@rjmurillo rjmurillo added this to the 0.2.0 milestone Jan 9, 2026
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docs: Document PowerShell string interpolation best practices

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