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aiterm-mcp
by kitepon

claude_agent

Launches Claude Code's interactive agent TUI in a persistent terminal for continued input, shared settings, and non-blocking delegated work.

Instructions

【旧互換alias。新規連携は agent_launch(harness=claude-code)】Claude Codeの対話エージェントTUIを永続端末に起動する。claude -pではなく、同じ利用者可視sessionへpty_sendで継続入力する。通常CLIと同じHOME・cwd・project/user/local設定・MCP・plugin・skill・permission/trustを共有する。aitermは完了相関stateだけをlaunch単位で所有する。起動されたagentにはsub-agent自己認識、親session、delegation depth/lineage、delegation_allowed=trueを注入し、必要な追加委譲は許可する。別のcomputer(登録済みの端末)で起こす時は、この起動にterminal(端末の登録元が渡す値をそのまま)とcwd(その端末のproject folder)を付ける。ここで起こしてからcd・sshしない。秘密の値はどの引数・prompt・送信文にも書かず、env_varsに名前だけを書く。通常settingsへlaunch固有Stop hook settingsを加算する。起動前に共有認証を構造化確認し、未認証ならsessionを作らない。dispatch した子は投げっぱなしでよい=親はここで待たない。Codex親とClaude Code親にはAitermが回答本文を自動配送する。parent_deliveryがある場合はwait起動も通常の回答回収も不要。親は作業を続けるかターンを終える。Cursor親にはparent_deliveryとwait_processが付く。作業を続ければ次のツール返りに回答が差し込まれ、ターンを終える前にwait_processを背景で起動するとidle中の完了でも起きられる。ポーリングとpty_read(agent_transcript:true)は不要。その他の親では、完了通知をreceiptの wait_process.executable と wait_process.args をそのまま親のターンを塞がない別プロセスAPIへ渡して受け、PowerShell 7のStart-Processだけは windows_start_process_argument_list を単一文字列として渡す。exit を完了通知として扱う(exit 0=done / 3=timeout(既定600秒・未完了) / 4=closed / 7=error(harnessの記録でturnがAPIエラー等で打ち切られた。結果は無い)。receiptのoutcomeが正で、done以外は未完了。ポーリング不要)。wait_command は人間向け互換表示でありprocess境界へ使わない。foreground実行で親のターンを塞がない。自動配送以外の結果回収は pty_read(agent_transcript:true)。Claude の durable turn は claude_turn でも回収できる。

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "claude_agent"
  }
}

Input Schema

NameRequiredDescriptionDefault
cwdNo作業ディレクトリ(対象リポのルート等・任意)。terminalを付ける時は必須で、その端末上のproject folderの絶対パス
fastNoファスト(harnessの高速の応答。費用や利用量が増える)。省略とfalseは通常の速度で起こす(利用者の設定にfastが残っていても通常)。trueは通常で起こしてから、その席をfastへ切り替える。modelがfastに対応していない時(FAST_MODE_NOT_SUPPORTED)と、modelへfast版のIDを書いてfalseを渡した時(FAST_MODE_MODEL_CONFLICT)は起動を断る。アカウントの都合で使えない時・確かめられない時は、起動を断らずに通常の速度で起こし、返りの fast を false、fast_error に訳を入れる。modelへfast版のIDを直に書いて省略した時だけ、そのIDのまま起こす(返りの fast は true)。
modelNo起動モデル(例: claude-sonnet-4-6)。省略時はClaude CLI既定
promptNo起動時に渡す初手プロンプト(任意)。送信後は待たずに即返る
env_varsNo起動したagentへ現在のMCP processから継承する環境変数名。値はtool引数へ渡さない
terminalNoRun this seat on another computer (a registered terminal) over SSH. Value: exactly the terminal value your host system's terminal registry hands over, {ref, target:{host,user,port}, trustRevision, and credentialRevision or credential {handle, revision}}; copy it unchanged, never invent or edit it, never use a host name or ssh command instead. Omit it to launch on this computer. Give cwd in the same call: the absolute project folder on that terminal. Never launch locally and then cd or ssh. Never put tokens, passwords or other secrets in any argument, prompt or typed text; pass secret values only by name in env_vars. After launch, use session_id alone for pty_send, pty_observe, pty_read, pty_key, claude_turn, agent_stop and pty_close; Aiterm routes them to the terminal. Errors and next step: TERMINAL_INVALID = malformed value, missing/relative cwd, or combined with remote: pass the registry's value unchanged with cwd. TARGET_MISMATCH / BINDING_UNKNOWN = the value is not this terminal's binding: ask the terminal registry again. HOST_TRUST_STALE / CREDENTIAL_REVISION_STALE = the binding changed: get the current value from the terminal registry and launch again. HOST_KEY_MISMATCH / HOST_TRUST_MISSING = the terminal's host key is not the trusted one: the Owner must confirm the new host key; do not retry. CREDENTIAL_REQUIRED / CREDENTIAL_NOT_LOADED = this terminal's key comes from a credential handle that the registry must load first; never paste a key anywhere. AUTH_FAILED = the terminal refused the key. UNREACHABLE = the terminal is offline; try later. CONNECTION_REFUSED = the terminal refused the SSH connection (SSH may be off there); try later. REMOTE_AITERM_TOO_OLD = update Aiterm on the terminal. CWD_UNAVAILABLE = the folder does not exist there; do not pick another folder. SEAT_FORWARD_UNAVAILABLE = the seat's MCP route back to this computer is not ready (launch again later), or the seat MCP URLs are not http://127.0.0.1:<one port>/api/seat-mcp. TERMINAL_HARNESS_UNSUPPORTED = use harness claude-code.
mcp_configNoExtra MCP servers for this seat; write secrets as ${ENV} names given in env_vars
session_nameNoセッション名(省略で自動採番)
trust_projectNo対象projectを信頼し、既知のworkspace・project hooks・MCP初期同意を起動中に進める
reasoning_effortNoClaude Code reasoning effort。low/medium/high/xhigh/max。省略時はCLI既定
configuration_rootNoClaude Codeの設定root(CLAUDE_CONFIG_DIR)の絶対パス。既定のroot(~/.claude、CLAUDE_CONFIG_DIRなし)か、AITERM_CLAUDE_CONFIG_ROOTSに並べた親の直下だけ。他はAGENT_CONFIGURATION_ROOT_REJECTED。休止席の再開では、新しいrootに同じ会話の記録がある時だけ替えられる
launch_operation_idNopromptなしClaude launchのexact replay相関ID。session_name必須
append_system_promptNoLaunch instructions added to the system prompt; kept in Aiterm state, not in the project or home
throughline_source_sessionNo同一端末のThroughline sessionから所有権を変えずに記憶を読み、promptのmissionより前へ注入する
throughline_supplement_fileNoThroughline 0.10.8以降へそのまま渡すproject束縛済み長期記憶・知識の補足JSON path

Output Schema

NameRequiredDescriptionDefault
fastNo起こした後の、席のfastの状態
schemaYes
harnessYes
startupYes
input_idNo
providerYes
fast_errorNofastを頼まれたが、通常の速度で起こした時の訳
session_idYes
event_cursorYes
wait_commandYes
wait_processYes
initial_promptYes
submit_residueYes
parent_deliveryNo
managed_completionYes後方互換field。trueはaiterm完了相関が有効という意味で、project/user環境の隔離を意味しない

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed5 schema fields changedv0.70.3
    • addedInput schema / properties / append_system_prompt
      Added value: +{
      +  "description": "Launch instructions added to the system prompt; kept in Aiterm state, not in the project or home",
      +  "minLength": 1,
      +  "type": "string"
      +}
    • addedInput schema / properties / configuration_root
      Added value: +{
      +  "description": "Claude Codeの設定root(CLAUDE_CONFIG_DIR)の絶対パス。既定のroot(~/.claude、CLAUDE_CONFIG_DIRなし)か、AITERM_CLAUDE_CONFIG_ROOTSに並べた親の直下だけ。他はAGENT_CONFIGURATION_ROOT_REJECTED。休止席の再開では、新しいrootに同じ会話の記録がある時だけ替えられる",
      +  "minLength": 1,
      +  "type": "string"
      +}
    • changedInput schema / properties / cwd / description
      Previous value: -"作業ディレクトリ(対象リポのルート等・任意)"New value: +"作業ディレクトリ(対象リポのルート等・任意)。terminalを付ける時は必須で、その端末上のproject folderの絶対パス"
    • addedInput schema / properties / mcp_config
      Added value: +{
      +  "additionalProperties": false,
      +  "description": "Extra MCP servers for this seat; write secrets as ${ENV} names given in env_vars",
      +  "properties": {
      +    "mcpServers": {
      +      "additionalProperties": {},
      +      "propertyNames": {
      +        "type": "string"
      +      },
      +      "type": "object"
      +    }
      +  },
      +  "required": [
      +    "mcpServers"
      +  ],
      +  "type": "object"
      +}
    • addedInput schema / properties / terminal
      Added value: +{
      +  "additionalProperties": false,
      +  "description": "Run this seat on another computer (a registered terminal) over SSH. Value: exactly the terminal value your host system's terminal registry hands over, {ref, target:{host,user,port}, trustRevision, and credentialRevision or credential {handle, revision}}; copy it unchanged, never invent or edit it, never use a host name or ssh command instead. Omit it to launch on this computer. Give cwd in the same call: the absolute project folder on that terminal. Never launch locally and then cd or ssh. Never put tokens, passwords or other secrets in any argument, prompt or typed text; pass secret values only by name in env_vars. After launch, use session_id alone for pty_send, pty_observe, pty_read, pty_key, claude_turn, agent_stop and pty_close; Aiterm routes them to the terminal. Errors and next step: TERMINAL_INVALID = malformed value, missing/relative cwd, or combined with remote: pass the registry's value unchanged with cwd. TARGET_MISMATCH / BINDING_UNKNOWN = the value is not this terminal's binding: ask the terminal registry again. HOST_TRUST_STALE / CREDENTIAL_REVISION_STALE = the binding changed: get the current value from the terminal registry and launch again. HOST_KEY_MISMATCH / HOST_TRUST_MISSING = the terminal's host key is not the trusted one: the Owner must confirm the new host key; do not retry. CREDENTIAL_REQUIRED / CREDENTIAL_NOT_LOADED = this terminal's key comes from a credential handle that the registry must load first; never paste a key anywhere. AUTH_FAILED = the terminal refused the key. UNREACHABLE = the terminal is offline; try later. CONNECTION_REFUSED = the terminal refused the SSH connection (SSH may be off there); try later. REMOTE_AITERM_TOO_OLD = update Aiterm on the terminal. CWD_UNAVAILABLE = the folder does not exist there; do not pick another folder. SEAT_FORWARD_UNAVAILABLE = the seat's MCP route back to this computer is not ready (launch again later), or the seat MCP URLs are not http://127.0.0.1:<one port>/api/seat-mcp. TERMINAL_HARNESS_UNSUPPORTED = use harness claude-code.",
      +  "properties": {
      +    "credential": {
      +      "additionalProperties": false,
      +      "properties": {
      +        "handle": {
      +          "format": "uuid",
      +          "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
      +          "type": "string"
      +        },
      +        "revision": {
      +          "exclusiveMinimum": 0,
      +          "maximum": 9007199254740991,
      +          "type": "integer"
      +        }
      +      },
      +      "required": [
      +        "handle",
      +        "revision"
      +      ],
      +      "type": "object"
      +    },
      +    "credentialRevision": {
      +      "pattern": "^sha256:[0-9a-f]{64}$",
      +      "type": "string"
      +    },
      +    "ref": {
      +      "format": "uuid",
      +      "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
      +      "type": "string"
      +    },
      +    "sudoCredential": {
      +      "additionalProperties": false,
      +      "properties": {
      +        "handle": {
      +          "format": "uuid",
      +          "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
      +          "type": "string"
      +        },
      +        "revision": {
      +          "exclusiveMinimum": 0,
      +          "maximum": 9007199254740991,
      +          "type": "integer"
      +        }
      +      },
      +      "required": [
      +        "handle",
      +        "revision"
      +      ],
      +      "type": "object"
      +    },
      +    "target": {
      +      "additionalProperties": false,
      +      "properties": {
      +        "host": {
      +          "minLength": 1,
      +          "type": "string"
      +        },
      +        "port": {
      +          "maximum": 65535,
      +          "minimum": 1,
      +          "type": "integer"
      +        },
      +        "user": {
      +          "minLength": 1,
      +          "type": "string"
      +        }
      +      },
      +      "required": [
      +        "host",
      +        "user",
      +        "port"
      +      ],
      +      "type": "object"
      +    },
      +    "trustRevision": {
      +      "pattern": "^sha256:[0-9a-f]{64}$",
      +      "type": "string"
      +    }
      +  },
      +  "required": [
      +    "ref",
      +    "target",
      +    "trustRevision"
      +  ],
      +  "type": "object"
      +}
  2. Changed4 schema fields changedv0.63.7
    • addedOutput schema / properties / input_id
      Added value: +{
      +  "pattern": "^[a-f0-9]{32}$",
      +  "type": "string"
      +}
    • addedOutput schema / properties / parent_delivery / properties / child_error_kind
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ]
      +}
    • addedOutput schema / properties / parent_delivery / properties / child_failure
      Added value: +{
      +  "additionalProperties": false,
      +  "properties": {
      +    "boundary": {
      +      "anyOf": [
      +        {
      +          "additionalProperties": false,
      +          "properties": {
      +            "event_cursor": {
      +              "maximum": 9007199254740991,
      +              "minimum": 0,
      +              "type": "integer"
      +            },
      +            "input_id": {
      +              "pattern": "^[a-f0-9]{32}$",
      +              "type": "string"
      +            },
      +            "operation_id": {
      +              "anyOf": [
      +                {
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            },
      +            "turn_id": {
      +              "anyOf": [
      +                {
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            }
      +          },
      +          "required": [
      +            "event_cursor",
      +            "operation_id",
      +            "turn_id"
      +          ],
      +          "type": "object"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "category": {
      +      "enum": [
      +        "capacity",
      +        "rate_limited",
      +        "transient",
      +        "other"
      +      ],
      +      "type": "string"
      +    },
      +    "execution": {
      +      "enum": [
      +        "not_started",
      +        "started",
      +        "unknown"
      +      ],
      +      "type": "string"
      +    },
      +    "future_effects": {
      +      "const": "unknown",
      +      "type": "string"
      +    },
      +    "terminal": {
      +      "type": "boolean"
      +    }
      +  },
      +  "required": [
      +    "category",
      +    "execution",
      +    "boundary",
      +    "terminal",
      +    "future_effects"
      +  ],
      +  "type": "object"
      +}
    • addedOutput schema / properties / parent_delivery / properties / child_vendor_session_id
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ]
      +}
  3. Changed3 schema fields changedv0.60.1
    • addedInput schema / properties / fast
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "boolean"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "description": "ファスト(harnessの高速の応答。費用や利用量が増える)。省略とfalseは通常の速度で起こす(利用者の設定にfastが残っていても通常)。trueは通常で起こしてから、その席をfastへ切り替える。modelがfastに対応していない時(FAST_MODE_NOT_SUPPORTED)と、modelへfast版のIDを書いてfalseを渡した時(FAST_MODE_MODEL_CONFLICT)は起動を断る。アカウントの都合で使えない時・確かめられない時は、起動を断らずに通常の速度で起こし、返りの fast を false、fast_error に訳を入れる。modelへfast版のIDを直に書いて省略した時だけ、そのIDのまま起こす(返りの fast は true)。"
      +}
    • addedOutput schema / properties / fast
      Added value: +{
      +  "description": "起こした後の、席のfastの状態",
      +  "type": "boolean"
      +}
    • addedOutput schema / properties / fast_error
      Added value: +{
      +  "anyOf": [
      +    {
      +      "additionalProperties": false,
      +      "properties": {
      +        "code": {
      +          "enum": [
      +            "FAST_MODE_NOT_SUPPORTED",
      +            "FAST_MODE_UNAVAILABLE",
      +            "FAST_MODE_MODEL_CONFLICT",
      +            "FAST_MODE_UNCONFIRMED"
      +          ],
      +          "type": "string"
      +        },
      +        "message": {
      +          "type": "string"
      +        }
      +      },
      +      "required": [
      +        "code",
      +        "message"
      +      ],
      +      "type": "object"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "description": "fastを頼まれたが、通常の速度で起こした時の訳"
      +}
  4. Changed5 schema fields changedv0.35.0
    • addedInput schema / properties / trust_project
      Added value: +{
      +  "description": "対象projectを信頼し、既知のworkspace・project hooks・MCP初期同意を起動中に進める",
      +  "type": "boolean"
      +}
    • addedOutput schema / properties / initial_prompt
      Added value: +{
      +  "additionalProperties": false,
      +  "properties": {
      +    "reason": {
      +      "type": "string"
      +    },
      +    "status": {
      +      "enum": [
      +        "not_requested",
      +        "not_sent",
      +        "submitted_unconfirmed",
      +        "started"
      +      ],
      +      "type": "string"
      +    },
      +    "turn_started": {
      +      "anyOf": [
      +        {
      +          "type": "boolean"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    }
      +  },
      +  "required": [
      +    "status",
      +    "reason",
      +    "turn_started"
      +  ],
      +  "type": "object"
      +}
    • addedOutput schema / properties / parent_delivery
      Added value: +{
      +  "additionalProperties": false,
      +  "properties": {
      +    "child_outcome": {
      +      "anyOf": [
      +        {
      +          "enum": [
      +            "done",
      +            "closed",
      +            "rate_limited",
      +            "error"
      +          ],
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "child_turn_id": {
      +      "anyOf": [
      +        {
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "delivery_id": {
      +      "type": "string"
      +    },
      +    "error_code": {
      +      "anyOf": [
      +        {
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "queued_submission_id": {
      +      "anyOf": [
      +        {
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "state": {
      +      "enum": [
      +        "waiting",
      +        "ready",
      +        "sending",
      +        "submitted",
      +        "failed",
      +        "unknown"
      +      ],
      +      "type": "string"
      +    }
      +  },
      +  "required": [
      +    "delivery_id",
      +    "state",
      +    "child_outcome",
      +    "child_turn_id",
      +    "queued_submission_id",
      +    "error_code"
      +  ],
      +  "type": "object"
      +}
    • addedOutput schema / properties / startup
      Added value: +{
      +  "additionalProperties": false,
      +  "properties": {
      +    "reason": {
      +      "type": "string"
      +    },
      +    "status": {
      +      "enum": [
      +        "ready",
      +        "not_checked",
      +        "blocked"
      +      ],
      +      "type": "string"
      +    }
      +  },
      +  "required": [
      +    "status",
      +    "reason"
      +  ],
      +  "type": "object"
      +}
    • changedOutput schema / required
      Previous value: -[
      -  "schema",
      -  "provider",
      -  "harness",
      -  "session_id",
      -  "managed_completion",
      -  "event_cursor",
      -  "wait_process",
      -  "wait_command",
      -  "submit_residue"
      -]New value: +[
      +  "schema",
      +  "initial_prompt",
      +  "startup",
      +  "provider",
      +  "harness",
      +  "session_id",
      +  "managed_completion",
      +  "event_cursor",
      +  "wait_process",
      +  "wait_command",
      +  "submit_residue"
      +]
  5. Changed1 schema field changedv0.29.21
    • addedInput schema / properties / throughline_supplement_file
      Added value: +{
      +  "description": "Throughline 0.10.8以降へそのまま渡すproject束縛済み長期記憶・知識の補足JSON path",
      +  "minLength": 1,
      +  "type": "string"
      +}
  6. Changed2 schema fields changedv0.29.8
    • addedOutput schema / properties / wait_process
      Added value: +{
      +  "anyOf": [
      +    {
      +      "additionalProperties": false,
      +      "properties": {
      +        "args": {
      +          "items": {
      +            "type": "string"
      +          },
      +          "type": "array"
      +        },
      +        "executable": {
      +          "type": "string"
      +        },
      +        "windows_start_process_argument_list": {
      +          "anyOf": [
      +            {
      +              "type": "string"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        }
      +      },
      +      "required": [
      +        "executable",
      +        "args",
      +        "windows_start_process_argument_list"
      +      ],
      +      "type": "object"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ]
      +}
    • changedOutput schema / required
      Previous value: -[
      -  "schema",
      -  "provider",
      -  "harness",
      -  "session_id",
      -  "managed_completion",
      -  "event_cursor",
      -  "wait_command",
      -  "submit_residue"
      -]New value: +[
      +  "schema",
      +  "provider",
      +  "harness",
      +  "session_id",
      +  "managed_completion",
      +  "event_cursor",
      +  "wait_process",
      +  "wait_command",
      +  "submit_residue"
      +]
  7. Changed2 schema fields changedv0.28.0
    • addedOutput schema / properties / harness
      Added value: +{
      +  "const": "claude-code",
      +  "type": "string"
      +}
    • changedOutput schema / required
      Previous value: -[
      -  "schema",
      -  "provider",
      -  "session_id",
      -  "managed_completion",
      -  "event_cursor",
      -  "wait_command",
      -  "submit_residue"
      -]New value: +[
      +  "schema",
      +  "provider",
      +  "harness",
      +  "session_id",
      +  "managed_completion",
      +  "event_cursor",
      +  "wait_command",
      +  "submit_residue"
      +]
  8. Changed1 schema field changedv0.27.0
    • addedInput schema / properties / env_vars
      Added value: +{
      +  "description": "起動したagentへ現在のMCP processから継承する環境変数名。値はtool引数へ渡さない",
      +  "items": {
      +    "type": "string"
      +  },
      +  "type": "array"
      +}
  9. Changed1 schema field changedv0.23.0
    • addedInput schema / properties / throughline_source_session
      Added value: +{
      +  "description": "同一端末のThroughline sessionから所有権を変えずに記憶を読み、promptのmissionより前へ注入する",
      +  "minLength": 1,
      +  "type": "string"
      +}
  10. Addedv0.22.0

TDQS

A4.7/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full load and does so: it discloses the pre-launch shared-auth check that prevents session creation, that only completion-correlation state is owned per launch, settings/hook merging, delegation-depth and sub-agent identity injection, fire-and-forget semantics, and the wait_process exit-code contract (0=done, 3=timeout at 600s, 4=closed, 7=error). These are exactly the behavioral traits an annotations-free mutation tool must reveal.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The single unbroken block is dense and repeats itself — polling being unnecessary and pty_read(agent_transcript:true) are each stated more than once, and the exit-code and parent-delivery passages are interleaved. The alias redirect is correctly front-loaded, but the remainder would benefit from structure given its length.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

An output schema exists, so return values need not be restated, and the description covers the remaining complexity well: auth gating, remote-terminal error recovery (delegated to the `terminal` param description), parent-harness-specific completion delivery, and alternate result collection via pty_read or claude_turn. Nothing an agent needs in order to invoke it correctly is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the baseline is 3; the description nonetheless adds real meaning by tying parameters together — `terminal` must be paired with `cwd` as the absolute project folder on that terminal, and secrets must be passed only by name in `env_vars`. It also clarifies that `prompt` returns immediately without waiting, which the schema alone states only briefly.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource — launching the Claude Code interactive agent TUI in a persistent terminal — and immediately distinguishes it from two things it is not: `claude -p` (non-interactive) and the newer `agent_launch(harness=claude-code)` alias target. An agent can tell exactly what this creates and how it differs from siblings like codex_agent/grok_agent.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It opens with an explicit routing rule (legacy alias; use agent_launch for new integrations), then specifies the remote case (attach `terminal` plus `cwd`, never launch locally and then cd/ssh), the parent-side result handling per parent harness (Codex/Claude Code auto-delivery, Cursor via wait_process, others via receipt), and explicitly says polling and pty_read are unnecessary. Alternatives and exclusions are both named.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.