docs(memory): add session 826 retrospective learnings#909
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…ws compatibility Convert inline array syntax `tools: ['a', 'b']` to block-style format across all agent templates and generated files to fix Windows YAML parsing errors. Changes: - Update 18 template files to use block-style arrays - Regenerate 54 agent files for VS Code and Copilot CLI - Update parser to handle block-style arrays in input - Update formatter to output block-style arrays - Add 8 new tests for array parsing and formatting - Fix silent failure paths with proper warnings - Update ADR-040 with YAML array format requirements - Update documentation examples Fixes: Windows "Unexpected scalar at node end" errors during agent installation Closes #893 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Multi-agent debate review for retroactive ADR-040 amendment validation. Result: 5 ACCEPT, 1 DISAGREE AND COMMIT (consensus achieved) Key findings: - Amendment correctly addresses Windows YAML parsing errors - Block-style arrays are universally compatible - P0 deferred: CRLF line endings investigation (separate concern) Debate participants: architect, critic, independent-thinker, security, analyst, high-level-advisor Co-Authored-By: Claude <noreply@anthropic.com>
Session 826: Fix Windows YAML parsing errors (issue #893) Artifacts: - .agents/critique/ADR-040-amendment-2026-01-13-debate-log.md Co-Authored-By: Claude <noreply@anthropic.com>
- Remove .agents/.hook-state/ from tracking and add to .gitignore - Rename analysis file from NNN to 826 (correct session number) - Fix ADR-040 file count: 18 templates + 54 generated files (not 18+18) - Fix ADR-040 session reference: 826 (not 825) - Add comment about regex comma limitation in array parsing Also adds analysis artifacts from ADR-040 review. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Resolved conflict in scripts/README.md by keeping consolidated documentation (removed duplicate Validate-SessionJson.ps1 sections). Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Retrospective analysis of fix/tools-frontmatter branch work: - 6 atomic learnings extracted (85-95% atomicity) - 10 success patterns identified - 4 near misses documented - 87.5% success rate Memory files created: - learnings-2026-01.md: Session 826 learning extraction - patterns-yaml-compatibility.md: Block-style arrays for cross-platform - patterns-powershell-pitfalls.md: Variable shadowing detection - patterns-multi-agent-consensus.md: DISAGREE AND COMMIT pattern Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Relocate test file from build/tests/ to root tests/ directory per project convention (all Pester tests in tests/). Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Resolved 56 conflicts by keeping block-style YAML arrays from our branch (the fix for Windows YAML parsing - issue #893). Main had regenerated agents with inline arrays, our branch has the corrected block-style format per ADR-040 amendment. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
…x updates Adds six new atomic memory files extracted from session 826 retrospective: - adr-artifact-count-verification: Verify git diff stats match ADR text - adr-retroactive-amendment-criteria: Emergency concurrent ADR documentation criteria - consensus-disagree-and-commit-pattern: Multi-agent debate resolution with follow-up issues - powershell-variable-shadowing-detection: Grep for automatic variables before testing - pr-review-batch-response-pattern: Single commit for all review comments - retrospective-artifact-efficiency-pattern: Create artifacts during execution (60-70% time savings) Updates memory index files to reference new patterns with improved keyword mappings. Includes markdown formatting fix for direct-reports-extraction-prompt.md (code fence language identifier). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Pull request overview
This pull request adds six atomic memory files extracted from session 826 retrospective analysis, documenting key patterns and learnings from YAML frontmatter standardization work. The PR transforms a consolidated date-based learnings file into domain-specific atomic memories for improved semantic retrieval.
Changes:
- Adds 6 new atomic memory files covering ADR documentation, PowerShell development, PR review workflows, multi-agent collaboration, and retrospective efficiency patterns
- Updates 5 memory index files (skills-retrospective-index, skills-pr-review-index, skills-powershell-index, skills-orchestration-index, adr-reference-index) with keyword mappings for the new memories
- Deprecates learnings-2026-01.md in favor of domain-specific filenames that enable better LLM recall
Reviewed changes
Copilot reviewed 13 out of 13 changed files in this pull request and generated 10 comments.
Show a summary per file
| File | Description |
|---|---|
.serena/memories/adr-artifact-count-verification.md |
Documents pattern for verifying artifact counts in ADRs before committing to prevent documentation drift |
.serena/memories/adr-retroactive-amendment-criteria.md |
Defines 5 strict criteria for when concurrent ADR documentation is allowed during urgent bug fixes |
.serena/memories/consensus-disagree-and-commit-pattern.md |
Explains multi-agent debate resolution pattern that enables progress while preserving dissenting perspectives |
.serena/memories/powershell-variable-shadowing-detection.md |
Documents code review pattern for detecting PowerShell automatic variable shadowing before testing |
.serena/memories/pr-review-batch-response-pattern.md |
Describes efficient PR review response pattern using single commit for multiple comments |
.serena/memories/retrospective-artifact-efficiency-pattern.md |
Documents pattern for creating artifacts during execution to reduce retrospective time by 60-70% |
.serena/memories/learnings-2026-01.md |
Deprecates consolidated learnings file with migration notice pointing to 6 atomic memories |
.serena/memories/skills-retrospective-index.md |
Adds index entry for retrospective-artifact-efficiency-pattern |
.serena/memories/skills-pr-review-index.md |
Adds index entry for pr-review-batch-response-pattern |
.serena/memories/skills-powershell-index.md |
Adds index entry for powershell-variable-shadowing-detection |
.serena/memories/skills-orchestration-index.md |
Adds index entry for consensus-disagree-and-commit-pattern |
.serena/memories/memory-index.md |
Updates main memory index with new keyword mappings for all 6 new memories |
.serena/memories/adr-reference-index.md |
Adds references to 2 new ADR-related memory files |
| | array handling double-nested Write-Output NoEnumerate wrapper anti-pattern | [powershell-array-handling](powershell-array-handling.md) | | ||
| | -like glob asterisk question flatten depth subdirectory filter files | [powershell-like-pattern-matching](powershell-like-pattern-matching.md) | | ||
| | variable case collision parameter ConvertFrom-Json case-insensitive naming | powershell-variable-case-collision | No newline at end of file | ||
| | variable case collision parameter ConvertFrom-Json case-insensitive naming | powershell-variable-case-collision | |
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Index entry format inconsistency: This entry references powershell-variable-case-collision without markdown link brackets, which indicates the memory file hasn't been created yet. This creates an incomplete index entry.
The entry should either:
- Have markdown link brackets like
[powershell-variable-case-collision](powershell-variable-case-collision.md)if the file exists - Be removed if the file doesn't exist and isn't part of this PR
All other entries in the index use markdown link format for existing files.
| | variable case collision parameter ConvertFrom-Json case-insensitive naming | powershell-variable-case-collision | |
| - [[debate-002-everything-deterministic-evaluation]] - Debate framework | ||
| - [[orchestration-003-orchestrator-first-routing]] - Multi-agent coordination | ||
| - [[quality-critique-escalation]] - Escalation patterns |
There was a problem hiding this comment.
Link format inconsistency: The Related section uses wiki-style double bracket notation [[file]] instead of standard markdown link format [text](file.md) that is used consistently throughout the rest of the repository.
For consistency with existing memory files, change:
[[debate-002-everything-deterministic-evaluation]]to[debate-002-everything-deterministic-evaluation](debate-002-everything-deterministic-evaluation.md)[[orchestration-003-orchestrator-first-routing]]to[orchestration-003-orchestrator-first-routing](orchestration-003-orchestrator-first-routing.md)[[quality-critique-escalation]]to[quality-critique-escalation](quality-critique-escalation.md)
While wiki-style links work in some markdown renderers like Obsidian, standard markdown link format is more portable and consistent with the rest of the codebase.
| - [[debate-002-everything-deterministic-evaluation]] - Debate framework | |
| - [[orchestration-003-orchestrator-first-routing]] - Multi-agent coordination | |
| - [[quality-critique-escalation]] - Escalation patterns | |
| - [debate-002-everything-deterministic-evaluation](debate-002-everything-deterministic-evaluation.md) - Debate framework | |
| - [orchestration-003-orchestrator-first-routing](orchestration-003-orchestrator-first-routing.md) - Multi-agent coordination | |
| - [quality-critique-escalation](quality-critique-escalation.md) - Escalation patterns |
| - [[protocol-template-enforcement]] - Template validation pattern | ||
| - [[adr-037-sync-evidence-gaps]] - Evidence-based verification | ||
| - [[retrospective-004-evidence-based-validation]] - Validation standards |
There was a problem hiding this comment.
Link format inconsistency: The Related section uses wiki-style double bracket notation [[file]] instead of standard markdown link format [text](file.md) that is used consistently throughout the rest of the repository.
For consistency with existing memory files, change:
[[protocol-template-enforcement]]to[protocol-template-enforcement](protocol-template-enforcement.md)[[adr-037-sync-evidence-gaps]]to[adr-037-sync-evidence-gaps](adr-037-sync-evidence-gaps.md)[[retrospective-004-evidence-based-validation]]to[retrospective-004-evidence-based-validation](retrospective-004-evidence-based-validation.md)
While wiki-style links work in some markdown renderers like Obsidian, standard markdown link format is more portable and consistent with the rest of the codebase.
| - [[protocol-template-enforcement]] - Template validation pattern | |
| - [[adr-037-sync-evidence-gaps]] - Evidence-based verification | |
| - [[retrospective-004-evidence-based-validation]] - Validation standards | |
| - [protocol-template-enforcement](protocol-template-enforcement.md) - Template validation pattern | |
| - [adr-037-sync-evidence-gaps](adr-037-sync-evidence-gaps.md) - Evidence-based verification | |
| - [retrospective-004-evidence-based-validation](retrospective-004-evidence-based-validation.md) - Validation standards |
| | python implicit string concat false positive PEP | [pr-review-python-implicit-string-concat](pr-review-python-implicit-string-concat.md) | | ||
| | security-comments priority-boost TOCTOU injection XSS | [pr-review-security](pr-review-security.md) | | ||
| | status classification decision tree blocking human | pr-review-status-001 | No newline at end of file | ||
| | status classification decision tree blocking human | pr-review-status-001 | |
There was a problem hiding this comment.
Index entry format inconsistency: This entry references pr-review-status-001 without markdown link brackets, which indicates the memory file hasn't been created yet. This creates an incomplete index entry.
The entry should either:
- Have markdown link brackets like
[pr-review-status-001](pr-review-status-001.md)if the file exists - Be removed if the file doesn't exist and isn't part of this PR
All other entries in the index use markdown link format for existing files.
| | status classification decision tree blocking human | pr-review-status-001 | |
| | copilot swe prompting constraints templates scope limits | [orchestration-prompt-002-copilot-swe-constraints](orchestration-prompt-002-copilot-swe-constraints.md) | | ||
| | copilot anti-patterns scope explosion test mutation signals | [orchestration-copilot-swe-anti-patterns](orchestration-copilot-swe-anti-patterns.md) | | ||
| | process workflow gap missing capability root cause consultation validation | orchestration-process-workflow-gaps | No newline at end of file | ||
| | process workflow gap missing capability root cause consultation validation | orchestration-process-workflow-gaps | |
There was a problem hiding this comment.
Index entry format inconsistency: This entry references orchestration-process-workflow-gaps without markdown link brackets. However, the file does exist (verified in memory-index.md line 49 and in the filesystem). This creates an inconsistency where the same file is referenced with proper markdown links in other indexes but not here.
Change this entry to use markdown link brackets: [orchestration-process-workflow-gaps](orchestration-process-workflow-gaps.md) to maintain consistency with other index entries and with the main memory-index.md.
| | process workflow gap missing capability root cause consultation validation | orchestration-process-workflow-gaps | | |
| | process workflow gap missing capability root cause consultation validation | [orchestration-process-workflow-gaps](orchestration-process-workflow-gaps.md) | |
| - [[retrospective-001-recursive-extraction]] - Recursive learning pattern | ||
| - [[retrospective-004-evidence-based-validation]] - Evidence standards | ||
| - [[protocol-013-verification-based-enforcement]] - Verification patterns |
There was a problem hiding this comment.
Link format inconsistency: The Related section uses wiki-style double bracket notation [[file]] instead of standard markdown link format [text](file.md) that is used consistently throughout the rest of the repository.
For consistency with existing memory files, change:
[[retrospective-001-recursive-extraction]]to[retrospective-001-recursive-extraction](retrospective-001-recursive-extraction.md)[[retrospective-004-evidence-based-validation]]to[retrospective-004-evidence-based-validation](retrospective-004-evidence-based-validation.md)[[protocol-013-verification-based-enforcement]]to[protocol-013-verification-based-enforcement](protocol-013-verification-based-enforcement.md)
While wiki-style links work in some markdown renderers like Obsidian, standard markdown link format is more portable and consistent with the rest of the codebase.
| - [[retrospective-001-recursive-extraction]] - Recursive learning pattern | |
| - [[retrospective-004-evidence-based-validation]] - Evidence standards | |
| - [[protocol-013-verification-based-enforcement]] - Verification patterns | |
| - [retrospective-001-recursive-extraction](retrospective-001-recursive-extraction.md) - Recursive learning pattern | |
| - [retrospective-004-evidence-based-validation](retrospective-004-evidence-based-validation.md) - Evidence standards | |
| - [protocol-013-verification-based-enforcement](protocol-013-verification-based-enforcement.md) - Verification patterns |
| - [[pr-review-007-ci-verification]] - CI checks before review | ||
| - [[pr-comment-004-bot-response-templates]] - Comment reply templates | ||
| - [[git-004-branch-verification-before-commit]] - Pre-commit validation |
There was a problem hiding this comment.
Link format inconsistency: The Related section uses wiki-style double bracket notation [[file]] instead of standard markdown link format [text](file.md) that is used consistently throughout the rest of the repository.
For consistency with existing memory files, change:
[[pr-review-007-ci-verification]]to[pr-review-007-ci-verification](pr-review-007-ci-verification.md)[[pr-comment-004-bot-response-templates]]to[pr-comment-004-bot-response-templates](pr-comment-004-bot-response-templates.md)[[git-004-branch-verification-before-commit]]to[git-004-branch-verification-before-commit](git-004-branch-verification-before-commit.md)
While wiki-style links work in some markdown renderers like Obsidian, standard markdown link format is more portable and consistent with the rest of the codebase.
| - [[pr-review-007-ci-verification]] - CI checks before review | |
| - [[pr-comment-004-bot-response-templates]] - Comment reply templates | |
| - [[git-004-branch-verification-before-commit]] - Pre-commit validation | |
| - [pr-review-007-ci-verification](pr-review-007-ci-verification.md) - CI checks before review | |
| - [pr-comment-004-bot-response-templates](pr-comment-004-bot-response-templates.md) - Comment reply templates | |
| - [git-004-branch-verification-before-commit](git-004-branch-verification-before-commit.md) - Pre-commit validation |
| - [[powershell-array-handling]] - PowerShell array patterns | ||
| - [[powershell-string-safety]] - String handling best practices | ||
| - [[powershell-testing-patterns]] - Testing strategies |
There was a problem hiding this comment.
Link format inconsistency: The Related section uses wiki-style double bracket notation [[file]] instead of standard markdown link format [text](file.md) that is used consistently throughout the rest of the repository.
For consistency with existing memory files, change:
[[powershell-array-handling]]to[powershell-array-handling](powershell-array-handling.md)[[powershell-string-safety]]to[powershell-string-safety](powershell-string-safety.md)[[powershell-testing-patterns]]to[powershell-testing-patterns](powershell-testing-patterns.md)
While wiki-style links work in some markdown renderers like Obsidian, standard markdown link format is more portable and consistent with the rest of the codebase.
| - [[powershell-array-handling]] - PowerShell array patterns | |
| - [[powershell-string-safety]] - String handling best practices | |
| - [[powershell-testing-patterns]] - Testing strategies | |
| - [powershell-array-handling](powershell-array-handling.md) - PowerShell array patterns | |
| - [powershell-string-safety](powershell-string-safety.md) - String handling best practices | |
| - [powershell-testing-patterns](powershell-testing-patterns.md) - Testing strategies |
| - [[protocol-013-verification-based-enforcement]] - Enforcement patterns | ||
| - [[protocol-014-trust-antipattern]] - Trust vs. verification | ||
| - [[adr-037-sync-evidence-gaps]] - Evidence requirements |
There was a problem hiding this comment.
Link format inconsistency: The Related section uses wiki-style double bracket notation [[file]] instead of standard markdown link format [text](file.md) that is used consistently throughout the rest of the repository.
For consistency with existing memory files, change:
[[protocol-013-verification-based-enforcement]]to[protocol-013-verification-based-enforcement](protocol-013-verification-based-enforcement.md)[[protocol-014-trust-antipattern]]to[protocol-014-trust-antipattern](protocol-014-trust-antipattern.md)[[adr-037-sync-evidence-gaps]]to[adr-037-sync-evidence-gaps](adr-037-sync-evidence-gaps.md)
While wiki-style links work in some markdown renderers like Obsidian, standard markdown link format is more portable and consistent with the rest of the codebase.
| - [[protocol-013-verification-based-enforcement]] - Enforcement patterns | |
| - [[protocol-014-trust-antipattern]] - Trust vs. verification | |
| - [[adr-037-sync-evidence-gaps]] - Evidence requirements | |
| - [protocol-013-verification-based-enforcement](protocol-013-verification-based-enforcement.md) - Enforcement patterns | |
| - [protocol-014-trust-antipattern](protocol-014-trust-antipattern.md) - Trust vs. verification | |
| - [adr-037-sync-evidence-gaps](adr-037-sync-evidence-gaps.md) - Evidence requirements |
| | PR402 acknowledged resolved thread lifecycle state model | [retrospective-pr402-acknowledged-resolved](retrospective-pr402-acknowledged-resolved.md) | | ||
| | skill persistence memory durability cross-session storage | [retrospective-skill-persistence](retrospective-skill-persistence.md) | | ||
| | commit threshold trigger 10 commits PR stuck pattern mini-retrospective | retrospective-commit-trigger | No newline at end of file | ||
| | commit threshold trigger 10 commits PR stuck pattern mini-retrospective | retrospective-commit-trigger | |
There was a problem hiding this comment.
Index entry format inconsistency: This entry references retrospective-commit-trigger without markdown link brackets, which indicates the memory file hasn't been created yet. This creates an incomplete index entry.
The entry should either:
- Have markdown link brackets like
[retrospective-commit-trigger](retrospective-commit-trigger.md)if the file exists - Be removed if the file doesn't exist and isn't part of this PR
All other entries in the index use markdown link format for existing files.
| | commit threshold trigger 10 commits PR stuck pattern mini-retrospective | retrospective-commit-trigger | |
Summary
Adds six new atomic memory files extracted from session 826 retrospective analysis, documenting key patterns and learnings from the YAML frontmatter standardization work.
New Memory Files
ADR & Architecture Patterns
git diff --statto verify file counts match ADR documentation before committing amendmentsMulti-Agent Collaboration
PowerShell Development
PR Review Workflow
Retrospective Efficiency
Changes
Testing
Related
🤖 Generated with Claude Code