m59-harness (tpeppers/m59-harness) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
MCP server that lets AI agents play Meridian 59 as real characters, with tools for movement, combat, trading, chatting, and fleet management.
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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tpeppers
Source: Glama
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Install from
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ANTHROPIC_API_KEYANTHROPIC_AUTH_TOKENANTHROPIC_CONFIG_DIRANTHROPIC_FEDERATION_RULE_IDM59_ABILITY_DIRM59_ACTIVE_FILEM59_ADMIN_BUDGETM59_ADMIN_PORTM59_BACKUP_DIRSM59_BAD_EXITSM59_BANK_DIRM59_BROKERM59_BROKER_HOSTM59_BROKER_PORTM59_BROKER_URLM59_CLAUDE_ACCOUNTM59_CLAUDE_OBJM59_CLIENTM59_CLIENT_EXEM59_CODE_EXITSM59_COMPENDIUMM59_COMPENDIUM_PORTM59_DEATH_TRUST_MSM59_DESC_DIRM59_FEED_SIZEM59_FLEETM59_HITS_DIRM59_HOSTM59_KEEPER_WATCH_MSM59_KODM59_LEDGER_DIRM59_LOADOUT_DIRM59_MAPM59_MAP_FILEM59_MERCHANTSM59_PALETTEM59_PORTM59_POSTMORTEM_DIRM59_PROXY_HOSTM59_PROXY_PORTM59_REAGENTS_SHORTM59_RESOURCEM59_RESPONDER_MODELM59_ROOTthe source tree set (default C:/code/Meridian59). The compendium's citations point into itM59_RPCM59_RSC_DIRM59_RTS_CONTROL_TOKENM59_RTS_NATIVE_PORTM59_RTS_PORTM59_RTS_READ_TOKENM59_RTS_RECONCILE_MSM59_SAVEGAMEM59_SPELLSM59_STREAM_PRESTEPM59_TOUGHER_ATTRIBUTE_MSM59_TOUGHER_DIRM59_TRANSIT_DIRM59_UPTIME_FILEM59_WALLSM59_ZONES_FILETool 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
4/4 tools missing one or more hints — fleet (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); equipment (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); wait_for_event (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +1 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.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tests exist
No test files found
Add tests that exercise each declared tool.
No eval / new Function
1 eval() or new Function() call — dynamic code execution
Replace eval / Function with explicit parsing or safer alternatives.
Secrets not logged
2 secret values sent to console.log
Redact or omit secret values from log output.
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