📚 Implementation Guides — Complete Index

You asked: "Should I use MCP servers or direct API calls?"

Answer: I created 4 guides to help you decide and implement. Start here.

The 4 Guides

1. MCP Decision — One Pager ⭐ START HERE

Length: 3 mins
Content: - Quick decision tree (AM I building production code?) - Side-by-side comparison table - TL;DR recommendation

When to read: Right now. Takes 3 mins. Answers your question immediately.

2. MCP vs Direct API — Full Comparison

Length: 15 mins
Content: - Detailed pros/cons of each approach - Security implications - Performance benchmarks - Real code examples (direct vs MCP) - Credentials management comparison - Migration path

When to read: Want to understand the full picture before deciding.

3. Implementation Quick-Start ⭐ YOUR ROADMAP

Length: 10 mins (planning), then 3–6 hours (building)
Content: - 3 implementation options (A, B, C) - Timeline for each option - Option C recommended: Direct API Week 1, refactor to MCP Week 2 - Complete code examples for both approaches - Weekly breakdown

When to read: Before you write any code. Gives you the game plan.

4. Week 1 Checklist — Getting Started ⭐ ACTIONABLE

Length: 30 mins setup + 3 hours coding
Content: - Pre-flight checklist (AWS, JIRA, GitHub setup) - Step-by-step code (6 steps) - Environment setup - Testing instructions - Troubleshooting guide - Success criteria

When to read: When you're ready to write code. Gives you everything to build Week 1.

My Recommendation (TL;DR)

Option C: Hybrid Approach (Recommended)

┌─────────────────────────────────────────────────┐
│ WEEK 1: Direct API Calls (Fast)                 │
│ ─────────────────────────────────────────────────│
│ • Set up JIRA + GitHub clients                  │
│ • Wire directly in agent code                   │
│ • Demo works by Wednesday                       │
│ • Show stakeholders the flow                    │
│ • Time: 3 hours                                 │
└─────────────────────────────────────────────────┘
                        ↓
┌─────────────────────────────────────────────────┐
│ WEEK 2: Refactor to MCP (Production)            │
│ ─────────────────────────────────────────────────│
│ • Wrap clients in FastAPI servers               │
│ • Test with docker-compose                      │
│ • Deploy to AWS ECS sidecars                    │
│ • Production-ready + reusable                   │
│ • Time: 3 hours                                 │
└─────────────────────────────────────────────────┘

Why this works: - ✅ Move fast initially (learn domain, validate workflow) - ✅ Productionize when confident (MCP servers, AWS ready) - ✅ Zero waste (Week 1 code becomes Week 2 MCP server) - ✅ Best of both worlds

Reading Order

If you have 5 minutes:

1. Read: MCP Decision — One Pager
2. Decision made. Next?

If you have 30 minutes:

1. Read: MCP Decision — One Pager
2. Read: Implementation Quick-Start — Planning section only
3. Skim: MCP vs Direct API — Just the tables

If you have 3 hours (Want to start coding):

1. Read: Implementation Quick-Start — Full
2. Read: Week 1 Checklist — Full
3. Open text editor and start coding

If you want the Deep Understanding:

1. Read: MCP vs Direct API — Full
2. Read: Implementation Quick-Start — Full
3. Reference: 07-mcp-servers.md — When building MCP Week 2

Quick Comparison: What Each Guide Offers

The Decision Tree (5 Seconds)

Q: Building for production?
├─ YES → Use MCP Servers (now, not later)
├─ NO → Next Q...
│
Q: Multiple clients will use these tools?
├─ YES → Use MCP Servers (save regret later)
├─ NO → Next Q...
│
Q: Have 5–6 hours to invest now?
├─ YES → Use MCP Servers (best investment)
├─ NO → Use Direct API Calls NOW, refactor Week 2

Bottom line: Most likely answer = Direct API now, MCP later (Option C).

Action Right Now

If you're in a meeting and need a 1-min answer:

→ MCP Decision — One Pager (first page)

If you need to convince your team:

→ MCP vs Direct API (show the tables)

If you're ready to code this week:

→ Week 1 Checklist (copy-paste the code)

If you want to plan the full timeline:

→ Implementation Quick-Start (Week 1 + Week 2 breakdown)

FAQ

Integration with Existing Docs

These guides fit into the demo project structure:

docs/demo-project/
├── 00-overview.md                    ← Main entry point
├── [NEW] MCP-Decision-OnePager.md    ← Quick answer
├── [NEW] MCP-vs-Direct-API-Comparison.md  ← Deep dive
├── [NEW] Implementation-Quickstart.md ← Your roadmap
├── [NEW] Week1-Checklist.md          ← Getting started
├── 01-aws-infra.md                   ← Existing (AWS setup)
├── 02-taskmaster-repo.md             ← Existing (repo structure)
├── 03-jira-setup.md                  ← Existing (JIRA config)
├── 04-github-setup.md                ← Existing (GitHub config)
├── 05-rag-indexing.md                ← Existing (RAG pipeline)
├── 06-langgraph-agent.md             ← Existing (agent design)
├── 07-mcp-servers.md                 ← Existing (MCP reference)
└── ...more

Entry flow: 1. Start: 00-overview.md (what are we building?) 2. Decide: MCP-Decision-OnePager.md (which approach?) 3. Plan: Implementation-Quickstart.md (what's the timeline?) 4. Build: Week1-Checklist.md (step-by-step code) 5. Reference: 07-mcp-servers.md (when refactoring to MCP)

What Happens Now

1. You read MCP Decision — One Pager (3 mins)

2. Makes a decision: Direct API now, MCP later

3. You read Implementation Quick-Start (10 mins)

4. Understands the timeline and trade-offs

5. You follow Week 1 Checklist (3 hours)

6. Has working agent by EOD

7. Week 2: Refactor using 07-mcp-servers.md as reference (3 hours)

8. MCP servers built, AWS-ready

9. You deploy and ship 🚀

Summary

Status

✅ All 4 guides created and ready ✅ Cross-linked in demo project structure ✅ Code examples included ✅ Timeline provided ✅ You can start building immediately

Next step? Read MCP Decision — One Pager (3 mins), then jump to Week 1 Checklist (3 hours to working demo).