mediar-ai/packages/skills/skills/hosted-agents
packages/skills/skills/hosted-agents/SKILL.md
# Hosted Agent Infrastructure Build background agents in remote sandboxed environments with unlimited concurrency and multiplayer collaboration. ## Prerequisites - Cloud infrastructure (Modal, Cloudflare, etc.) - Understanding of containerization ## Instructions ### Architecture Layers 1. **Sandbox Infrastructure**: Isolated execution environments 2. **API Layer**: State management and client coordination 3. **Client Interfaces**: Web, Slack, Chrome extensions ### Image Registry Pattern
$ install --global
skillsauthnpx skillsauth add mediar-ai/skillhubz packages/skills/skills/hosted-agentsInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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TrivyContainer and dependency vulnerability scanner
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mcp-scan (Snyk)Model Context Protocol security validation
95%
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Snyk (dep)Open source security scanning
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Socket.devSupply chain security analysis
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CrowdStrikeAdvanced threat intelligence
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Last scanned: Apr 18, 2026, 6:47 AM32.4s2 files scanned
SKILL.md
Hosted Agent Infrastructure
Build background agents in remote sandboxed environments with unlimited concurrency and multiplayer collaboration.
Prerequisites
- Cloud infrastructure (Modal, Cloudflare, etc.)
- Understanding of containerization
Instructions
Architecture Layers
- Sandbox Infrastructure: Isolated execution environments
- API Layer: State management and client coordination
- Client Interfaces: Web, Slack, Chrome extensions
Image Registry Pattern
Pre-build environment images on regular cadence (every 30 minutes):
- Cloned repository at known commit
- All runtime dependencies installed
- Initial setup and build completed
- Cached files from running app once
Session start: Spin up sandbox from most recent image.
Snapshot and Restore
Take filesystem snapshots at key points:
- After initial image build (base)
- When agent finishes changes (session)
- Before sandbox exit (follow-up)
Speed Optimizations
Predictive Warm-Up: Start warming sandbox as user begins typing.
Parallel File Reading: Allow reads immediately, even if sync incomplete. Block edits until synchronized.
Maximize Build-Time Work: Move everything possible to image build step.
Self-Spawning Agents
Create tools for agents to spawn new sessions:
- Research across different repositories
- Parallel subtask execution
- Multiple smaller PRs from one major task
Multiplayer Support
- Data model must not tie sessions to single authors
- Pass authorship info to each prompt
- Share session links for instant collaboration
Key Metrics
- Sessions resulting in merged PRs (primary)
- Time from session start to first model response
- PR approval rate and revision count
Guidelines
- Pre-build environment images on regular cadence
- Start warming sandboxes when users begin typing
- Allow file reads before git sync; block only writes
- Structure framework as server-first with thin clients
- Isolate state per session to prevent interference
- Track merged PRs as primary success metric
Notes
- Session speed should be limited only by model TTFT
- Multiplayer is nearly free with proper sync architecture
- Slack integration creates virality loop for adoption
Source: muratcankoylan/Agent-Skills-for-Context-Engineering
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