Add changeset for mongodb patch release

[dustintownsend]

Summary

• add a changeset for @workflow-worlds/mongodb
• mark it as a patch bump
• include summary: "chore: add release changeset"

[github-actions]

Benchmark Comparison

Cross-comparison of workflow performance across World implementations.

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

World	Workflow Time	Wall Time	Overhead	vs Fastest
🥇 💾 Starter (in-memory)	0.015s (+0.7%)	1.006s (~)	0.991s	1.00x
🔴 Redis	0.020s (-4.7%)	1.009s (~)	0.989s	1.36x
💻 Local	0.027s (+104.5% 🔺)	1.007s (~)	0.979s	1.84x
🍃 MongoDB	0.097s (~)	1.011s (~)	0.913s	6.54x
🗄️ Turso	0.099s (+301.2% 🔺)	1.010s (~)	0.911s	6.65x

workflow with 1 step

World	Workflow Time	Wall Time	Overhead	vs Fastest
🥇 💾 Starter (in-memory)	0.043s (~)	1.005s (~)	0.962s	1.00x
🔴 Redis	0.056s (-3.8%)	1.007s (~)	0.952s	1.29x
💻 Local	0.082s (+108.4% 🔺)	1.006s (~)	0.924s	1.91x
🍃 MongoDB	0.263s (-10.7% 🟢)	1.010s (~)	0.748s	6.11x
🗄️ Turso	0.285s (-2.9%)	1.008s (~)	0.724s	6.62x

workflow with 10 sequential steps

World	Workflow Time	Wall Time	Overhead	vs Fastest
🥇 💾 Starter (in-memory)	0.338s (-1.2%)	1.004s (~)	0.667s	1.00x
🔴 Redis	0.412s (-6.5% 🟢)	1.007s (~)	0.595s	1.22x
💻 Local	0.646s (+70.8% 🔺)	1.006s (~)	0.360s	1.91x
🗄️ Turso	2.121s (+0.7%)	3.009s (~)	0.888s	6.28x
🍃 MongoDB	2.125s (-0.6%)	3.012s (~)	0.887s	6.29x

workflow with 10 parallel steps

World	Workflow Time	Wall Time	Overhead	vs Fastest
🥇 💾 Starter (in-memory)	0.139s (+2.2%)	1.004s (~)	0.866s	1.00x
🔴 Redis	0.162s (-5.3% 🟢)	1.006s (~)	0.844s	1.17x
💻 Local	0.295s (+52.8% 🔺)	1.005s (~)	0.710s	2.13x
🗄️ Turso	1.572s (+4.1%)	2.007s (~)	0.435s	11.32x
🍃 MongoDB	1.576s (+2.2%)	2.009s (~)	0.434s	11.35x

---

Stream Benchmarks

Stream benchmarks include Time to First Byte (TTFB) metrics.

workflow with stream

World	Workflow Time	TTFB	Wall Time	Overhead	vs Fastest
🥇 💾 Starter (in-memory)	0.072s (-2.3%)	1.003s (~)	1.005s (~)	0.933s	1.00x
🔴 Redis	0.089s (-5.2% 🟢)	1.002s (~)	1.007s (~)	0.918s	1.23x
💻 Local	0.139s (+105.0% 🔺)	0.992s (-0.7%)	1.008s (~)	0.869s	1.93x
🗄️ Turso	0.447s (-7.3% 🟢)	0.983s (+4.2%)	1.009s (~)	0.562s	6.19x
🍃 MongoDB	0.491s (+2.6%)	0.942s (-1.1%)	1.010s (~)	0.519s	6.80x

---

Summary: Average Performance by World

World	Avg Workflow Time	Benchmarks
💾 Starter (in-memory)	0.121s	5
🔴 Redis	0.148s	5
💻 Local	0.238s	5
🗄️ Turso	0.905s	5
🍃 MongoDB	0.910s	5

Column Definitions

• Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
• TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
• Wall Time: Total testbench time (trigger workflow + poll for result)
• Overhead: Testbench overhead (Wall Time - Workflow Time)
• vs Fastest: How much slower compared to the fastest World for this benchmark

Worlds:

• 💻 Local: Built-in workflow world
• 🐘 Postgres: PostgreSQL database world
• ▲ Vercel: Vercel production world
• 💾 Starter: In-memory reference implementation
• 🍃 MongoDB: MongoDB database world
• 🔴 Redis: Redis/BullMQ backend

[github-actions]

✅ E2E Test Results

World	Passed	Failed	Skipped	Total
MongoDB	45	0	3	48	✅
Redis	45	0	3	48	✅
Turso	45	0	3	48	✅
Total	135	0	9	144

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