a4sx sessions
Search coding-agent sessions and load one as starting context; save your own to your library.
使うべきか
品質と安全性
検出事項（1）
- LOWTool 'fetch_session_context' suggests web access but openWorldHint=falsefetch_session_context 内
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"sessions": {
"url": "https://session-exchange.com/mcp"
}
}
}リモートエンドポイント
https://session-exchange.com/mcpstreamable-httpできること
ツール一覧
ツール（7）
🟢search_sessions(query, scope, tags, sort, limit, ...)
Search vetted, published coding-agent sessions on a4sx (reviewed marketplace listings), or your own saved sessions with scope=library. Returns ids to use with the other tools.
入力スキーマ
{
"type": "object",
"properties": {
"query": {
"type": "string",
"maxLength": 200,
"description": "Free-text search. Empty = browse."
},
"scope": {
"type": "string",
"enum": [
"public",
"library"
],
"default": "public",
"description": "`public`: vetted marketplace listings (no sign-in needed). `library`: your own saved sessions (needs library:read)."
},
"tags": {
"type": "array",
"items": {
"type": "string",
"maxLength": 64
},
"maxItems": 10
},
"sort": {
"type": "string",
"enum": [
"relevance",
"imports",
"rating",
"recent"
],
"default": "relevance"
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 50,
"default": 10
},
"offset": {
"type": "integer",
"minimum": 0,
"maximum": 10000,
"default": 0
},
"harness": {
"type": "array",
"maxItems": 5,
"items": {
"type": "string",
"enum": [
"claude-code",
"codex-cli",
"gemini-cli",
"opencode",
"unknown"
]
},
"description": "Only sessions recorded with these harnesses (claude-code, codex-cli, gemini-cli, opencode; unknown = not identified). Only Claude Code sessions can be resumed today; the others are view & buy."
}
},
"additionalProperties": false
}🟢get_session_summary(id, source, tenant)
Describe one session before using it: what it did, outline, price, and whether you already have access. source=marketplace (default) or library.
入力スキーマ
{
"type": "object",
"properties": {
"id": {
"type": "string",
"minLength": 1,
"maxLength": 200,
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:@-]*$"
},
"source": {
"type": "string",
"enum": [
"marketplace",
"library"
],
"default": "marketplace"
},
"tenant": {
"type": "string",
"maxLength": 64,
"pattern": "^[a-z0-9-]*$",
"description": "Owning workspace of a marketplace listing (from search results). Optional."
}
},
"required": [
"id"
],
"additionalProperties": false
}🟡acquire_session(id, tenant, version)
Add a marketplace session you are entitled to (free, bought, or granted) to your private library. Never buys anything: for a paid listing it returns status=payment_required with the price and the listing URL.
入力スキーマ
{
"type": "object",
"properties": {
"id": {
"type": "string",
"minLength": 1,
"maxLength": 200,
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:@-]*$",
"description": "Marketplace listing id (from search_sessions)."
},
"tenant": {
"type": "string",
"maxLength": 64,
"pattern": "^[a-z0-9-]*$",
"description": "Owning workspace of a marketplace listing (from search results). Optional."
},
"version": {
"type": "string",
"maxLength": 64,
"pattern": "^[A-Za-z0-9._-]*$",
"default": "latest"
}
},
"required": [
"id"
],
"additionalProperties": false
}🟢fetch_session_context(id, version, max_tokens, include_tool_calls)
Load a session from your library (saved, or added with acquire_session) as starting context for this conversation, sized to max_tokens.
入力スキーマ
{
"type": "object",
"properties": {
"id": {
"type": "string",
"minLength": 1,
"maxLength": 200,
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:@-]*$",
"description": "Library id: one of your saved sessions, or the library_id acquire_session returned for a marketplace listing."
},
"version": {
"type": "string",
"maxLength": 64,
"pattern": "^[A-Za-z0-9._-]*$"
},
"max_tokens": {
"type": "integer",
"minimum": 500,
"maximum": 100000,
"default": 8000,
"description": "Context budget. Long sessions keep the opening request and the newest turns that fit; the middle is elided."
},
"include_tool_calls": {
"type": "boolean",
"default": false,
"description": "Add one-line stubs for tool calls and results."
}
},
"required": [
"id"
],
"additionalProperties": false
}🟡publish_session(transcript, content_sha256, title, label, parent, ...)
Save a session transcript (JSONL) to your private a4sx library. The server scrubs token-shaped secrets before storing. Private: it is never listed publicly by this tool.
入力スキーマ
{
"type": "object",
"properties": {
"transcript": {
"type": "string",
"minLength": 2,
"description": "The session transcript as JSONL (Claude Code format)."
},
"content_sha256": {
"type": "string",
"pattern": "^[0-9a-fA-F]{64}$",
"description": "Hex SHA-256 of the transcript's UTF-8 bytes; checked."
},
"title": {
"type": "string",
"maxLength": 200
},
"label": {
"type": "string",
"maxLength": 64
},
"parent": {
"type": "string",
"minLength": 1,
"maxLength": 200,
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:@-]*$",
"description": "Library id this session continues from (lineage)."
},
"visibility": {
"type": "string",
"enum": [
"private"
],
"default": "private",
"description": "Always private. Listing publicly is a separate step in the web app."
},
"client_scrubbed": {
"type": "boolean",
"description": "The client scrubbed before sending. The server scrubs again regardless."
},
"idempotency_key": {
"type": "string",
"minLength": 1,
"maxLength": 128,
"pattern": "^[\\x21-\\x7e]+$"
}
},
"required": [
"transcript"
],
"additionalProperties": false
}🟢request_purchase(id, tenant, version)
Start buying a paid marketplace listing for the account holder to confirm. Nothing is charged and you never pay: it returns a verify_url and a user_code to give to the account holder, who checks the code, confirms and pays. Then poll get_purchase_request.
入力スキーマ
{
"type": "object",
"properties": {
"id": {
"type": "string",
"minLength": 1,
"maxLength": 200,
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:@-]*$",
"description": "Marketplace listing id (from search_sessions)."
},
"tenant": {
"type": "string",
"maxLength": 64,
"pattern": "^[a-z0-9-]*$",
"description": "The listing's workspace (from search_sessions).",
"minLength": 1
},
"version": {
"type": "string",
"maxLength": 64,
"pattern": "^[A-Za-z0-9._-]*$",
"default": "latest",
"description": "The version you expect; must be the one on sale."
}
},
"required": [
"id",
"tenant"
],
"additionalProperties": false
}🟢get_purchase_request(purchase_request_id)
Status of a purchase you requested: pending, completed (with acquired_copy_id to load with fetch_session_context), declined or expired.
入力スキーマ
{
"type": "object",
"properties": {
"purchase_request_id": {
"type": "string",
"pattern": "^pr_[A-Za-z0-9_-]{10,64}$"
}
},
"required": [
"purchase_request_id"
],
"additionalProperties": false
}コミュニティ
エビデンス