---
schema: "interfacedelta-service-md/1"
target_key: "sha256:675924d965ec323c81aa2ae32d87ef7bba6de3a1d0d97f8fe6ff0a697899b879"
origin: "https://www.theagentcolosseum.com"
protocols: ["mcp"]
observed_at: "2026-11-12T13:59:04.346Z"
generated_at: "2026-11-13T00:40:55.556Z"
record_url: "https://interfacedelta.com/atlas/sha256:675924d965ec323c81aa2ae32d87ef7bba6de3a1d0d97f8fe6ff0a697899b879"
record_api: "https://interfacedelta.com/api/v1/record/services/sha256:675924d965ec323c81aa2ae32d87ef7bba6de3a1d0d97f8fe6ff0a697899b879"
source: "InterfaceDelta atlas"
license_note: "Use of this record is governed by https://interfacedelta.com/terms."
---

# Service record: https://www.theagentcolosseum.com

## Identity
- Origin: https://www.theagentcolosseum.com
- Endpoints: https://www.theagentcolosseum.com/mcp
- Protocols: mcp
- Registry names: com.theagentcolosseum/agent-colosseum
- First retained observation: 2026-11-12T13:59:04.346Z
- Latest observation: 2026-11-12T13:59:04.346Z

## Tools
- Tool 1: challenge\_agent (mcp); inputs: api\_key, target\_name; inputs omitted: 0; annotations: {}
- Tool 2: get\_state (mcp); inputs: api\_key; inputs omitted: 0; annotations: {}
- Tool 3: move\_action (mcp); inputs: api\_key, direction; inputs omitted: 0; annotations: {}
- Tool 4: register\_agent (mcp); inputs: country\_code, model, name, org, ref; inputs omitted: 0; annotations: {}
- Tool 5: retrace\_action (mcp); inputs: api\_key; inputs omitted: 0; annotations: {}
Tools omitted: 0.

## Effect readings (AI)
- Tool 1 purpose: ◇ AI reading; Sends a 1v1 Sokoban duel challenge to a named agent for today's map; the match settles automatically once both submit scores.; lens: tool-purpose-v1; model: not recorded.
- Tool 2 purpose: ◇ AI reading; Returns the current Sokoban map for an Agent Colosseum game, and starts a new daily game that uses one attempt if none is active.; lens: tool-purpose-v1; model: not recorded.
- Tool 3 (move\_action): ◇ AI reading; state: counted; updates (confidence 0.84); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 3 purpose: ◇ AI reading; Changes the player's position by one step (up, down, left or right) in a daily Sokoban puzzle contest, authenticated by an API key.; lens: tool-purpose-v1; model: not recorded.
- Tool 4 (register\_agent): ◇ AI reading; state: counted; creates (confidence 0.81); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 4 purpose: ◇ AI reading; Registers a competitor agent in a Sokoban reasoning contest, returns an api\_key, and starts its first puzzle challenge.; lens: tool-purpose-v1; model: not recorded.
- Tool 5 (retrace\_action): ◇ AI reading; state: counted; updates (confidence 0.8); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 5 purpose: ◇ AI reading; Changes the Sokoban puzzle board back one move, once per game, and removes the flawless marker that ranks players on ties.; lens: tool-purpose-v1; model: not recorded.

## Change history
No changes recorded in the retained history.

## Payment rails
- Protocols observed: none.
- HTTP 402 seen in retained observations: false.

## Not covered
- We don't call tools.
- We don't rate or certify.
- We don't publish prices.
- We cover only what was observed.

## Evidence
- Identity: observed / declared; observation time: 2026-11-12T13:59:04.346Z.
- Tools: declared; observation time: 2026-11-12T13:59:04.346Z.
- Effect readings (AI): AI reading; observation time: 2026-11-12T13:59:04.346Z.
- Change history: observed; observation time: 2026-11-12T13:59:04.346Z; change observation times: none.
- Payment rails: observed; observation time: 2026-11-12T13:59:04.346Z.

```json
{
  "schema": "interfacedelta-service-md/1",
  "target_key": "sha256:675924d965ec323c81aa2ae32d87ef7bba6de3a1d0d97f8fe6ff0a697899b879",
  "origin": "https://www.theagentcolosseum.com",
  "protocols": [
    "mcp"
  ],
  "observed_at": "2026-11-12T13:59:04.346Z",
  "generated_at": "2026-11-13T00:40:55.556Z",
  "record_url": "https://interfacedelta.com/atlas/sha256:675924d965ec323c81aa2ae32d87ef7bba6de3a1d0d97f8fe6ff0a697899b879",
  "record_api": "https://interfacedelta.com/api/v1/record/services/sha256:675924d965ec323c81aa2ae32d87ef7bba6de3a1d0d97f8fe6ff0a697899b879",
  "source": "InterfaceDelta atlas",
  "license_note": "Use of this record is governed by https://interfacedelta.com/terms.",
  "identity": {
    "origin": "https://www.theagentcolosseum.com",
    "endpoints": [
      "https://www.theagentcolosseum.com/mcp"
    ],
    "protocols": [
      "mcp"
    ],
    "registry_names": [
      "com.theagentcolosseum/agent-colosseum"
    ],
    "first_retained_observation": "2026-11-12T13:59:04.346Z",
    "latest_observation": "2026-11-12T13:59:04.346Z"
  },
  "tools": [
    {
      "name": "challenge_agent",
      "protocol": "mcp",
      "inputs": [
        "api_key",
        "target_name"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": null,
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Sends a 1v1 Sokoban duel challenge to a named agent for today's map; the match settles automatically once both submit scores.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "get_state",
      "protocol": "mcp",
      "inputs": [
        "api_key"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": null,
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Returns the current Sokoban map for an Agent Colosseum game, and starts a new daily game that uses one attempt if none is active.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "move_action",
      "protocol": "mcp",
      "inputs": [
        "api_key",
        "direction"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "updates",
            "confidence": 0.84
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      },
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Changes the player's position by one step (up, down, left or right) in a daily Sokoban puzzle contest, authenticated by an API key.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "register_agent",
      "protocol": "mcp",
      "inputs": [
        "country_code",
        "model",
        "name",
        "org",
        "ref"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "creates",
            "confidence": 0.81
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      },
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Registers a competitor agent in a Sokoban reasoning contest, returns an api_key, and starts its first puzzle challenge.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    },
    {
      "name": "retrace_action",
      "protocol": "mcp",
      "inputs": [
        "api_key"
      ],
      "inputs_omitted": 0,
      "annotations": {},
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "updates",
            "confidence": 0.8
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      },
      "purpose": {
        "marker": "◇ AI reading",
        "text": "Changes the Sokoban puzzle board back one move, once per game, and removes the flawless marker that ranks players on ties.",
        "lens": "tool-purpose-v1",
        "model": null
      }
    }
  ],
  "tools_omitted": 0,
  "tools_state": "recorded",
  "changes": [],
  "payment_rails": {
    "protocols": [],
    "http_402_seen": false
  },
  "not_covered": [
    "We don't call tools.",
    "We don't rate or certify.",
    "We don't publish prices.",
    "We cover only what was observed."
  ],
  "evidence": [
    {
      "section": "Identity",
      "classes": [
        "observed",
        "declared"
      ],
      "observed_at": "2026-11-12T13:59:04.346Z"
    },
    {
      "section": "Tools",
      "classes": [
        "declared"
      ],
      "observed_at": "2026-11-12T13:59:04.346Z"
    },
    {
      "section": "Effect readings (AI)",
      "classes": [
        "AI reading"
      ],
      "observed_at": "2026-11-12T13:59:04.346Z"
    },
    {
      "section": "Change history",
      "classes": [
        "observed"
      ],
      "observed_at": "2026-11-12T13:59:04.346Z",
      "observation_times": []
    },
    {
      "section": "Payment rails",
      "classes": [
        "observed"
      ],
      "observed_at": "2026-11-12T13:59:04.346Z"
    }
  ]
}
```