Loenn MCP Server
loenn-mcp
PyPI
v5.2.0
Published by maggy-studio — no publish provenance, so origin is unverified, but the source is public: the repository link below is self-declared yet readable, so you can inspect the code before adopting it.
Celeste map editor for AI agents — MCP server for reading, editing, previewing, and procedurally generating .bin map files
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 7 = 93. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −6 | capability blast radius (high) — client exposure if the model is manipulated |
| −1 | publisher verification (public source) — no provenance, but the source is public and inspectable |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 1
high Shell/command execution in server code (loenn_mcp/image_map.py)MTC-SRC-002
In the server's implementation (`loenn_mcp/image_map.py:42`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: # Green → player spawn (0, 0, 255): "jumpthru", # Blue → jump-through platform (255, 255, 0): "straw
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server loenn_mcp/image_map.py
Tools 82
Each tool and what it can reach — statically extracted from the published source.
add_decalno sensitive capabilityadd_entityno sensitive capabilityadd_roomno sensitive capabilityadd_stylegroundno sensitive capabilityadd_triggerno sensitive capabilityai_analyze_mapno sensitive capabilityai_describe_roomno sensitive capabilityai_suggest_entitiesno sensitive capabilityanalyze_difficultyno sensitive capabilityanalyze_entity_usageno sensitive capability
Show 72 more tools ↓
analyze_mapno sensitive capabilityanalyze_map_assetsno sensitive capabilityanalyze_room_connectivityno sensitive capabilitybatch_add_entitiesno sensitive capabilitybatch_validate_and_fixno sensitive capabilitybuild_pattern_libraryno sensitive capabilityclone_roomno sensitive capabilitycompare_mapsno sensitive capabilitycompare_roomsno sensitive capabilitycreate_mapno sensitive capabilitydetect_map_patternsno sensitive capabilityexport_room_jsonno sensitive capabilityfind_entity_referencesno sensitive capabilitygenerate_map_from_imageno sensitive capabilitygenerate_room_from_patternno sensitive capabilitygenerate_terrain_mapno sensitive capabilityget_effect_definitionno sensitive capabilityget_entity_definitionno sensitive capabilityget_loenn_manager_sourceno sensitive capabilityget_map_dependenciesno sensitive capabilityget_map_metadatano sensitive capabilityget_mod_infono sensitive capabilityget_room_settingsno sensitive capabilityget_room_tilesno sensitive capabilityget_trigger_definitionno sensitive capabilityimport_room_jsonno sensitive capabilityingest_external_mapno sensitive capabilityinstall_loenn_managerno sensitive capabilitylist_decalsno sensitive capabilitylist_effect_definitionsno sensitive capabilitylist_entity_definitionsno sensitive capabilitylist_mapsno sensitive capabilitylist_stylegroundsno sensitive capabilitylist_trigger_definitionsno sensitive capabilitymove_entityno sensitive capabilitymove_roomno sensitive capabilitypcg_markov_fillno sensitive capabilitypcg_mdmc_presetsno sensitive capabilitypcg_pipelineno sensitive capabilitypcg_score_roomno sensitive capabilitypcg_skeleton_generateno sensitive capabilitypreview_map_sectionno sensitive capabilitypreview_terrain_biomesno sensitive capabilityread_map_metadatano sensitive capabilityread_map_overviewno sensitive capabilityread_roomno sensitive capabilityremove_decalno sensitive capabilityremove_entityno sensitive capabilityremove_roomno sensitive capabilityremove_stylegroundno sensitive capabilityremove_triggerno sensitive capabilityrename_roomno sensitive capabilityrender_map_htmlno sensitive capabilityresize_roomno sensitive capabilitysearch_entitiesno sensitive capabilitysearch_triggersno sensitive capabilityset_map_dependenciesno sensitive capabilityset_map_metadatano sensitive capabilityset_room_tilesno sensitive capabilitysuggest_improvementsno sensitive capabilitysummarize_map_diffno sensitive capabilityupdate_entityno sensitive capabilityupdate_roomno sensitive capabilityupdate_room_settingsno sensitive capabilityupdate_stylegroundno sensitive capabilityvalidate_mapno sensitive capabilityvalidate_roomno sensitive capabilityvisualize_map_layoutno sensitive capabilitywiki_getno sensitive capabilitywiki_listno sensitive capabilitywiki_saveno sensitive capabilitywiki_searchno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (82 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v5.2.0 latest |
A 93/100 | 1 | 1.13.0 | 2026-08-25 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
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