agent-sandbox-mcp (dhanababum/agent-sandbox-os) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 35 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Emerging
74/100
8 days ago

agent-sandbox-mcp

Enables AI agents to create, manage, and execute code in isolated Firecracker microVM sandboxes via the MCP protocol, with support for sandbox lifecycle and file operations.

→ dhanababum/agent-sandbox-os· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

dhanababum

Source: Glama

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// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configAGENTD_SUSPEND_DRAIN_SECONDS
configAGENTD_IDENTITY_PATH
configAGENTD_PORTagentd application port the SDK scopes auth tokens to (must match the guest's AGENTD_PORT)
configAGENTD_HOOK_PORTReserved lifecycle-hook port; asb forward refuses it (must match the guest's AGENTD_HOOK_PORT)
configAGENT_SANDBOX_AGENT_PORTagentd application port the SDK scopes auth tokens to (must match the guest's AGENTD_PORT)
configAGENT_SANDBOX_HOOK_PORT(, default 9000) is rejected — see
configAGENT_SANDBOX_STATE(override with ), since AWS has no concept of sandbox names.
configAGENT_SANDBOX_INFRA_STATE~/.agent_sandbox/infra-state.json (override with ).
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

35/35 tools missing one or more hints — sandbox_exec (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); sandbox_shell (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); sandbox_fs_read (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +32 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/dhanababum/agent-sandbox-os)](https://m8ven.ai/mcp/dhanababum/agent-sandbox-os)
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commit: 52a7277bc1fdffb7ff6ac47597f0ba386b151df1
code hash: 16c24e86a0b2ea92ab558dc335d1ee0a00e07223065574d670f08d2985042d46
verified: 9/2/2026, 2:32:13 AM
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