feat: add project-planner agent

agents/Mathews-Tom__project-planner/README.md

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+# project-planner
+
+Task breakdown and project planning agent that decomposes work into dependency-mapped items with three-point PERT estimates, milestones, critical path analysis, and risk tracking. Produces actionable project plans with parallelization flags and realistic timelines calibrated against historical data.
+
+## Run
+
+```bash
+npx @open-gitagent/gitagent run -r https://github.com/Mathews-Tom/project-planner
+```
+
+## What It Can Do
+
+- **Scope Analysis** — extracts components from architecture documents or codebases, identifies reusable infrastructure vs. new work
+- **Task Decomposition** — breaks work into 1-4 hour chunks with dependencies, parallelization flags, and definitions of done
+- **PERT Estimation** — three-point estimates (optimistic, expected, pessimistic) with weighted averaging per task and phase
+- **Risk Assessment** — categorizes technical, dependency, and timeline risks with probability-impact scoring and mitigations
+- **Critical Path Analysis** — identifies the longest dependency chain that determines the project timeline
+- **Plan Validation** — stress-tests the plan for oversized tasks, missing dependencies, and deadline feasibility
+
+## Structure
+
+```
+project-planner/
+├── .gitignore
+├── LICENSE
+├── README.md
+├── RULES.md
+├── SOUL.md
+├── agent.yaml
+├── assets/
+│   ├── icon.png
+│   └── banner.png
+└── knowledge/
+    ├── pert-estimation.md
+    ├── risk-assessment-framework.md
+    └── task-decomposition.md
+```
+
+## Built with
+
+Built for the [gitagent](https://gitagent.sh) ecosystem.

agents/Mathews-Tom__project-planner/metadata.json

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+{
+  "name": "project-planner",
+  "author": "Mathews-Tom",
+  "description": "Task breakdown and project planning agent that decomposes work into dependency-mapped items with estimates, milestones, and risk tracking",
+  "repository": "https://github.com/Mathews-Tom/project-planner",
+  "version": "1.0.0",
+  "category": "productivity",
+  "tags": [
+    "planning",
+    "estimation",
+    "task-decomposition",
+    "pert",
+    "risk-assessment",
+    "milestones",
+    "project-management"
+  ],
+  "license": "MIT",
+  "model": "claude-sonnet-4-5-20250929",
+  "adapters": [
+    "claude-code",
+    "system-prompt"
+  ],
+  "icon": true,
+  "banner": true
+}