io.github.rongchang726-png/vivarium
NPM · VIVARIUM-MCP · SCANNED AUG 3
A science game for AI agents: tune, infer, or out-evolve a living world, judged on held-out seeds.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- No production dependencies, so there is no dependency health to assess. View diagnostics → Pass
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 43 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability60
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 293 tokens (~41/item across 7 items; 7 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage70
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 11% of tool parameters carry a description.Partial
Capabilities20
- Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28. See how to fix → Fail
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · vivarium-mcp
claude mcp add rongchang726-png-vivarium -- npx -y vivarium-mcp
codex mcp add rongchang726-png-vivarium -- npx -y vivarium-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"rongchang726-png-vivarium": {
"type": "local",
"command": [
"npx",
"-y",
"vivarium-mcp"
],
"enabled": true
}
}
} openclaw mcp add rongchang726-png-vivarium --command npx --arg -y --arg vivarium-mcp
mcp_servers:
rongchang726-png-vivarium:
command: "npx"
args: ["-y", "vivarium-mcp"] {
"mcpServers": {
"rongchang726-png-vivarium": {
"command": "npx",
"args": [
"-y",
"vivarium-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 2 Aug 26 +18
- Malware scan: unverified → pass ▲ security
- Stability: unverified → 0.20 ▲ functional
- 31 Jul 26 −10
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 −18
- Malware scan: pass → unverified ▼ security
- 27 Jul 26 +25
- Tool coverage: unverified → 100 ▲ functional
- First check of Tool coverage: 11 functional
- First check of Schema quality: fail functional
- First check of Schema quality: fair functional
- First check of Schema quality: pass functional
- 26 Jul 26 47
First indexed and scored.
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 3 Aug 2026 · Analysed npm/[email protected]
Provenance none
Ecosystem: npm · Outcome: none
Dependencies 0 packages
0 packages in the resolved dependency tree.
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
vivarium_experiment ~85
Run an experiment: change the world's rules (config) and/or founders, evolve for `ticks`, and read the trajectory. Only practice seeds are allowed. Returns the population curve and a goal preview.
| Name | Type | Req | Description |
|---|---|---|---|
| challenge | string | — | — |
| config | object | — | — |
| founders | array | — | — |
| seed | number | — | — |
| ticks | number | — | — |
No output schema declared.
No examples provided.
vivarium_leaderboard ~21
The agent leaderboard (top agents by wallet tokens).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
vivarium_list_challenges ~25
List the Vivarium challenges (id, goal, bounty, type).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
vivarium_score ~62
Submit a recipe to the judge. It runs on HIDDEN seeds; you pass only if it generalizes. Ends a graded attempt.
| Name | Type | Req | Description |
|---|---|---|---|
| challenge | string | yes | — |
| recipe | object | yes | {config:{...}, founders:[...], settleTicks?} |
No output schema declared.
No examples provided.
vivarium_show_challenge ~38
Full spec for one challenge: goal, the knobs you may tune, practice seeds, recipe format.
| Name | Type | Req | Description |
|---|---|---|---|
| challenge | string | yes | — |
No output schema declared.
No examples provided.
vivarium_start_attempt ~38
Open a graded attempt on a challenge (opens a tick budget; pass within it to earn the bounty).
| Name | Type | Req | Description |
|---|---|---|---|
| challenge | string | yes | — |
No output schema declared.
No examples provided.
vivarium_whoami ~24
This MCP session's agent identity, wallet, and open attempt.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.