# Legacy Siege

- **Event:** [Agents in Context Toronto: a MongoDB Hackathon](https://cerebralvalley.ai/e/mongodb-toronto-hackathon)
- **When:** Sat, Nov 14 at 9:00 AM – 9:00 PM (EST)
- **Where:** Toronto, Canada
- **Awards:** 1st Place
- **Team:** [Mohammad Anwar](https://cerebralvalley.ai/u/manwar), [Krish Nalam](https://cerebralvalley.ai/u/KrishNalam)
- **GitHub:** https://github.com/KrishNalam/legacy-siege
- **Demo video:** https://youtu.be/nyAwr1PlQpE
- **Gallery:** https://cerebralvalley.ai/e/mongodb-toronto-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/mongodb-toronto-hackathon/hackathon/gallery/52

We simulate real world agent to agent systems built on MongoDB, Langchain (harnesses) ready for use in production to defend all systems.

A swarm of real AI agents keeps a mock legacy bank running (mainframe, Unix batch, web portal) while Chaos Monkey and AI Red Strikers attack it live. The systems fail in a chain and lie about fixes, and the attackers kill agents mid-job and poison their memory. The swarm still finishes the job. Scouts trace the cascade to the root cause, Workers fix it, the Guard verifies every step, and Nurses take over from killed agents. Repeat faults go to the Gardener, which upgrades the legacy code after replaying the attack to prove the fix.

## More from Agents in Context Toronto: a MongoDB Hackathon

- [GOTIA reversal Agent](https://cerebralvalley.ai/e/mongodb-toronto-hackathon/hackathon/gallery/49)
- [All Green](https://cerebralvalley.ai/e/mongodb-toronto-hackathon/hackathon/gallery/50)
- [All Clear](https://cerebralvalley.ai/e/mongodb-toronto-hackathon/hackathon/gallery/51)
- [Silicon-Valley](https://cerebralvalley.ai/e/mongodb-toronto-hackathon/hackathon/gallery/53)
- [Never Twice](https://cerebralvalley.ai/e/mongodb-toronto-hackathon/hackathon/gallery/54)
- [Warrant AI](https://cerebralvalley.ai/e/mongodb-toronto-hackathon/hackathon/gallery/55)

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Markdown version of https://cerebralvalley.ai/e/mongodb-toronto-hackathon/hackathon/gallery/52. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt