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feat: Reflection for DAG validation engine implementation for tool prerequisites (#54) - #1010

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feat: Reflection for DAG validation engine implementation for tool prerequisites (#54)#1010
parth33320 wants to merge 9 commits into
ascherj:mainfrom
parth33320:main

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Summary

Implements a robust Directed Acyclic Graph (DAG) based plan validation engine for tool prerequisites within the agent orchestration pipeline. This prevents tools like the market_analyzer or skill_extractor from executing out-of-order or with missing prerequisites, replacing silent failures or zero-scores with clear PlanValidationError exceptions.

Issue

Closes #54

Changes

  • Introduced a dedicated PlanValidator in agent/tools/tool_dependencies.py utilizing a DFS node-coloring algorithm for cycle detection and topological sorting.
  • Integrated PlanValidator into agent/orchestrator.py to validate plans prior to execution.
  • Added comprehensive TDD unit tests in tests/unit/test_tool_dependencies.py covering missing prerequisites, invalid topological order, and circular dependencies.
  • Added architectural documentation in CONTEXT.md and complete tracking history in JOURNAL.md.

Testing

  • Unit tests pass (make test-unit / pytest suite for tool dependencies)
  • Integration tests pass
  • Linter passes
  • Type checker passes
  • New/updated tests cover the changes (tests/unit/test_tool_dependencies.py)

Notes for Reviewers

This PR completes the Module 3 contribution cycle, concluding with the Week 10 reflection and final iteration documentation logged in JOURNAL.md.

google-labs-jules Bot and others added 9 commits July 14, 2026 06:35
…erequisites-11980902065280860727

Project 7 Issue Selection and Planning Submission
…ation

Reproduced the orchestrator plan execution bug by adding unit tests that run tools out of order or with missing prerequisites without any validation. Documented ubiquitous language in CONTEXT.md and created technical implementation plan in PLAN.md. Updated journal.md with Week 8 details.
…erequisites-4167257601558801224

Issue Reproduction and Solution Planning for Issue ascherj#54 (Plan Validation)
…erequisites-12152886257111828774

Implement DAG validation engine for tool prerequisites ascherj#54
Updated branch name in journal entry from 'feat' to 'fix'.
Updated feedback summary and response to reflect personal contributions instead of reviewer comments.
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Add a plan validation step that checks tool prerequisites before executing the plan

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