treeship (zerkerlabs/treeship) is an MCP server listed on the M8ven Trust Index. It scores 71 out of 100, grade C. It declares 9 tools. No publisher has claimed this listing.

C
Caution
71/100

treeship

Portable trust receipts for agent workflows. Signed, chained, verifiable.

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

zerkerlabs

Source: github_repo_search

Is this your MCP?

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Install from

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Tool descriptions don’t match what handlers do
1 tool describes read intent but its handler mutates — treeship_session_status (line 33: exec(TREESHIP_BIN, args, { timeout: TIMEOUT_MS }))
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.
// tools this server exposes9 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

treeship_session_status

Show the active Treeship session: id, name, started_at, event count, and the current actor. Returns JSON.

treeship_session_event

Append a structured event to the active Treeship session. Use type=agent.note for free-form notes the agent wants on the receipt timeline; put the note in meta.text.

treeship_attest_action

Sign a Treeship action artifact recording that the agent is about to do something. Returns the artifact id as JSON.

treeship_verify

Verify a Treeship artifact id and its parent chain. Returns the verification result.

treeship_session_report

Publish the latest closed session as a shareable report. When summary is provided, close the active session with that summary first.

treeship_mint_challenge

Mint a 128-bit challenge nonce to hand to another agent. YOU are the receiver: run this before accepting any work from another agent, then require that agent to answer THIS nonce with treeship_present. Never accept a nonce the other party generated — a nonce they chose can be pre-signed, which prove

treeship_present

Package this agent’s card, certificate chain, known revocations, and a Merkle staple into a presentation file, answering a challenge nonce the counterparty minted. Use when another agent or a human asks you to prove who you are. Presenting without a challenge is not proof of identity and this tool r

treeship_verify_presentation

Verify a counterparty presentation against YOUR pinned trust roots, fully offline. Run this BEFORE doing work another agent asked for, and do not proceed if it fails. Read the structured fields rather than the verdict line: an unpinned issuer and a replayed nonce both print CHALLENGE FAILED, but key

treeship_attest_handoff

Sign a record that custody of some artifacts passed from one agent to another. Pass the presentation file you verified with treeship_verify_presentation and the nonce you minted, and the CLI re-checks it and signs custody: live bound to that file and nonce — or refuses to write anything if it no lon

// known CVEs in dependencies1 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

lowvitest@3.2.7GHSA-82fw-gwwq-j7x9

Vitest: Path Traversal / Arbitrary File Read via @vitest/mocker Redirect Mock

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// 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.
configTREESHIP_ACTORAUTO
configTREESHIP_APPROVAL_NONCEBind all calls to an approval
configTREESHIP_BIN
configTREESHIP_DISABLEFull passthrough, zero attestation
configTREESHIP_STRICT
// 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

9/9 tools missing one or more hints — treeship_session_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); treeship_session_event (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); treeship_attest_action (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +6 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.

Descriptions match behaviour

1 tool describes read intent but its handler mutates — treeship_session_status (line 33: exec(TREESHIP_BIN, args, { timeout: TIMEOUT_MS }))

Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.

Tool test coverage

Only 0/9 tools referenced in tests (0%)

Write tests that reference each tool by name so every tool has at least one test.

Shell command execution

4 calls in production code run through a shell (src/server.ts:33, src/attest.ts:64, src/attest.ts:95)

Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.

Domain consistency

npm scope @treeship doesn't match GitHub owner zerkerlabs

Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.

Tool description accuracy

treeship_session_status: description implies read-only but handler writes/deletes/executes

Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.

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 7 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 Verified](https://m8ven.ai/badge/mcp/zerkerlabs/treeship?variant=verified)](https://m8ven.ai/mcp/zerkerlabs/treeship)
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commit: f7fada6cf3a76f45f767f2267151786af6306efb
code hash: 3ad830cd273d56e63e306c08e94fa8ba9c27b3ec0396c9fcbf29286a88ce58e9
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