Summer 2025

Playgent

Sandboxes for AI agents

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What they do

sandbox environments to reproduce AI agent failures

How close to us

2, near

checks only: replays failures for testing, does not do the work

Wedges

  • W2 Seeing whether your AI agents actually produce adjacent
L1 Company brain (knows the organisation) 0, none
L2 Agent team (runs agents, tools, approvals) 0, none
L3 Does and learns (finishes, checks, measures, updates the brain) 1, light

Who buys

Firm size
not known
Buyer type
developer
Role
agent engineering teams
UK
not known
Their own description (from YC)

When enterprise agents fail in production, the conditions that caused the failure are critical: user state, data, tool calls, and context. Without a way to recreate these conditions, teams can't fix what broke.

Playgent provides infrastructure to create high-fidelity sandbox environments for AI agents. Our environments come packaged as a single MCP url where tool calls are mocked, authentication is abstracted away, and test data can be initialized via natural language or JSON specifications.

Teams can use Playgent to reproduce production failures in safe, scoped environments that accurately reconstruct state. Finally, export runs as OTel traces from Playgent's environment to plug directly into your observability tools or RL pipelines.

Full teardown

No full teardown yet. On the deep list.

Technical detail
Slug
playgent
Lens hash
179096c479
Pass
screen
Stale
no