[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill-letta-using-mcp-tools":3,"mdc--fgz6dc-key":41,"related-repo-letta-using-mcp-tools":674,"related-org-letta-using-mcp-tools":766},{"slug":4,"name":4,"fn":5,"description":6,"org":7,"tags":12,"stars":23,"repoUrl":24,"updatedAt":25,"license":26,"forks":27,"topics":28,"repo":36,"sourceUrl":39,"mdContent":40},"using-mcp-tools","invoke MCP tools via Letta CLI","Reference for the `letta mcp` CLI, which finds and invokes MCP tools available to this agent. 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A system reminder already lists your connected MCP servers and the basic search\u002Fschema\u002Fcall commands; invoke this skill when you need more — browsing a server's tools, passing large or file-based arguments, tuning search, or troubleshooting missing servers, tools, and errors.\n---\n\n# Using MCP tools\n\n`letta mcp` gives the agent one unified view of every MCP server it can reach: servers connected to the agent in Letta Cloud and servers configured locally on this machine. It works from any surface where the agent runs — cloud sandboxes (chat.letta.com), Letta Desktop, and terminals. All output is JSON.\n\n## Commands\n\n```bash\nletta mcp list                                # servers: [{name, transport}]\nletta mcp get \u003Cserver>                        # one server's connection configuration (credentials redacted)\nletta mcp tools [server]                      # tool names + descriptions only\nletta mcp tools [server] --full               # ...including every tool's complete schema\nletta mcp schema \u003Ctool-name>                  # one tool's complete schema\nletta mcp search \u003Cquery> [--mode] [--limit]   # ranked tool schemas: [{tool, rank, score}]\nletta mcp call \u003Ctool-name> [--args | --args-file]  # run a tool, print a CallToolResult\n```\n\nEvery command accepts `--agent \u003Cid>`, defaulting to `LETTA_AGENT_ID`\u002F`AGENT_ID` — do not pass it unless targeting another agent.\n\n## Search options\n\n- `--mode \u003Chybrid|vector|fts>` — default `hybrid`. `vector` uses server-side embeddings and covers only cloud-connected servers; `fts` and `hybrid` also rank local tools lexically. Agents on a local backend cannot use `vector`.\n- `--limit \u003Cn>` — result count, 1-100 (default 5).\n- Rank order is meaningful; absolute scores are not comparable across queries. When even the top results look unrelated to the query, no relevant tool likely exists — do not force the best-ranked one.\n\n## Call arguments and results\n\n- `--args '\u003Cjson>'` — inline JSON object.\n- `--args-file \u003Cpath>` — read the JSON object from a file; `--args-file -` reads stdin. Use these for large or shell-quoting-hostile payloads.\n- Output is an MCP CallToolResult: `content` (array of typed blocks), optional `structuredContent`, and `isError`.\n- Exit codes: `0` success, `1` CLI\u002Fusage error (JSON on stderr: `{error: {code, message, hint?}}`), `2` the tool ran and returned an error result — read `content` for the server's message, fix the arguments, and retry.\n- Summarize relevant results instead of pasting large raw payloads.\n\n## Troubleshooting\n\n- `list` empty → no MCP servers are available. Ask the user to connect one on the Letta Cloud MCP servers page or configure a local one in the Letta Code app.\n- Cloud server with no tools (or `0 tools` in the reminder) → tools were never synced. Ask the user to resync it from the MCP servers page; the CLI has no refresh action.\n- `unauthorized` or another auth error on `call` → the server's stored credentials are missing or stale (`tools` can still list from previously synced rows). Ask the user to re-authenticate the server: cloud servers on the MCP servers page, local OAuth servers by connecting once in the Letta Code app — this CLI is non-interactive and only reuses persisted credentials.\n- `ambiguous_server_name` → two servers share a name; the error hint explains how to disambiguate.\n- Duplicate tool names across servers get a numeric suffix (`_2`); the printed name is always the callable one.\n",{"data":42,"body":43},{"name":4,"description":6},{"type":44,"children":45},"root",[46,54,67,74,363,392,398,468,474,584,590,668],{"type":47,"tag":48,"props":49,"children":50},"element","h1",{"id":4},[51],{"type":52,"value":53},"text","Using MCP tools",{"type":47,"tag":55,"props":56,"children":57},"p",{},[58,65],{"type":47,"tag":59,"props":60,"children":62},"code",{"className":61},[],[63],{"type":52,"value":64},"letta mcp",{"type":52,"value":66}," gives the agent one unified view of every MCP server it can reach: servers connected to the agent in Letta Cloud and servers configured locally on this machine. It works from any surface where the agent runs — cloud sandboxes (chat.letta.com), Letta Desktop, and terminals. All output is JSON.",{"type":47,"tag":68,"props":69,"children":71},"h2",{"id":70},"commands",[72],{"type":52,"value":73},"Commands",{"type":47,"tag":75,"props":76,"children":81},"pre",{"className":77,"code":78,"language":79,"meta":80,"style":80},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","letta mcp list                                # servers: [{name, transport}]\nletta mcp get \u003Cserver>                        # one server's connection configuration (credentials redacted)\nletta mcp tools [server]                      # tool names + descriptions only\nletta mcp tools [server] --full               # ...including every tool's complete schema\nletta mcp schema \u003Ctool-name>                  # one tool's complete schema\nletta mcp search \u003Cquery> [--mode] [--limit]   # ranked tool schemas: [{tool, rank, score}]\nletta mcp call \u003Ctool-name> [--args | --args-file]  # run a tool, print a CallToolResult\n","bash","",[82],{"type":47,"tag":59,"props":83,"children":84},{"__ignoreMap":80},[85,113,157,184,210,250,310],{"type":47,"tag":86,"props":87,"children":90},"span",{"class":88,"line":89},"line",1,[91,96,102,107],{"type":47,"tag":86,"props":92,"children":94},{"style":93},"--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B",[95],{"type":52,"value":8},{"type":47,"tag":86,"props":97,"children":99},{"style":98},"--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D",[100],{"type":52,"value":101}," mcp",{"type":47,"tag":86,"props":103,"children":104},{"style":98},[105],{"type":52,"value":106}," list",{"type":47,"tag":86,"props":108,"children":110},{"style":109},"--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic",[111],{"type":52,"value":112},"                                # 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one server's connection configuration (credentials redacted)\n",{"type":47,"tag":86,"props":158,"children":160},{"class":88,"line":159},3,[161,165,169,174,179],{"type":47,"tag":86,"props":162,"children":163},{"style":93},[164],{"type":52,"value":8},{"type":47,"tag":86,"props":166,"children":167},{"style":98},[168],{"type":52,"value":101},{"type":47,"tag":86,"props":170,"children":171},{"style":98},[172],{"type":52,"value":173}," tools",{"type":47,"tag":86,"props":175,"children":176},{"style":143},[177],{"type":52,"value":178}," [server]                      ",{"type":47,"tag":86,"props":180,"children":181},{"style":109},[182],{"type":52,"value":183},"# tool names + descriptions only\n",{"type":47,"tag":86,"props":185,"children":187},{"class":88,"line":186},4,[188,192,196,200,205],{"type":47,"tag":86,"props":189,"children":190},{"style":93},[191],{"type":52,"value":8},{"type":47,"tag":86,"props":193,"children":194},{"style":98},[195],{"type":52,"value":101},{"type":47,"tag":86,"props":197,"children":198},{"style":98},[199],{"type":52,"value":173},{"type":47,"tag":86,"props":201,"children":202},{"style":143},[203],{"type":52,"value":204}," [server] --full               ",{"type":47,"tag":86,"props":206,"children":207},{"style":109},[208],{"type":52,"value":209},"# ...including every tool's complete schema\n",{"type":47,"tag":86,"props":211,"children":213},{"class":88,"line":212},5,[214,218,222,227,231,236,241,245],{"type":47,"tag":86,"props":215,"children":216},{"style":93},[217],{"type":52,"value":8},{"type":47,"tag":86,"props":219,"children":220},{"style":98},[221],{"type":52,"value":101},{"type":47,"tag":86,"props":223,"children":224},{"style":98},[225],{"type":52,"value":226}," schema",{"type":47,"tag":86,"props":228,"children":229},{"style":132},[230],{"type":52,"value":135},{"type":47,"tag":86,"props":232,"children":233},{"style":98},[234],{"type":52,"value":235},"tool-nam",{"type":47,"tag":86,"props":237,"children":238},{"style":143},[239],{"type":52,"value":240},"e",{"type":47,"tag":86,"props":242,"children":243},{"style":132},[244],{"type":52,"value":151},{"type":47,"tag":86,"props":246,"children":247},{"style":109},[248],{"type":52,"value":249},"                  # 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Ask the user to re-authenticate the server: cloud servers on the MCP servers page, local OAuth servers by connecting once in the Letta Code app — this CLI is non-interactive and only reuses persisted credentials.",{"type":47,"tag":403,"props":645,"children":646},{},[647,653],{"type":47,"tag":59,"props":648,"children":650},{"className":649},[],[651],{"type":52,"value":652},"ambiguous_server_name",{"type":52,"value":654}," → two servers share a name; the error hint explains how to disambiguate.",{"type":47,"tag":403,"props":656,"children":657},{},[658,660,666],{"type":52,"value":659},"Duplicate tool names across servers get a numeric suffix (",{"type":47,"tag":59,"props":661,"children":663},{"className":662},[],[664],{"type":52,"value":665},"_2",{"type":52,"value":667},"); the printed name is always the callable one.",{"type":47,"tag":669,"props":670,"children":671},"style",{},[672],{"type":52,"value":673},"html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}",{"items":675,"total":765},[676,690,704,719,729,741,755],{"slug":677,"name":677,"fn":678,"description":679,"org":680,"tags":681,"stars":23,"repoUrl":24,"updatedAt":689},"acquiring-skills","discover and install agent skills","Discover and install skills from Hermes, ClawHub, GitHub, and other registries. Load this skill whenever a user asks for a capability you don't already have — image generation, social media, email, calendar, finance, DevOps, search, browser automation, etc.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[682,683,686],{"name":21,"slug":22,"type":16},{"name":684,"slug":685,"type":16},"Automation","automation",{"name":687,"slug":688,"type":16},"GitHub","github","2026-07-13T06:22:58.45767",{"slug":691,"name":691,"fn":692,"description":693,"org":694,"tags":695,"stars":23,"repoUrl":24,"updatedAt":703},"browser-use","automate browser navigation and interaction","Control a real browser to navigate pages, click, type, fill forms, inspect rendered UI, take screenshots, or record video. Load only when the user asks to open or automate a browser, interact with or test rendered page UI, scrape a site that needs browser execution, or capture a browser screenshot or video. Do not load for backend logs, traces, API or stream events, source-code inspection, or plain HTTP or web research that does not require a browser.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[696,697,700],{"name":684,"slug":685,"type":16},{"name":698,"slug":699,"type":16},"Browser Automation","browser-automation",{"name":701,"slug":702,"type":16},"Testing","testing","2026-08-31T09:19:30.902952",{"slug":705,"name":706,"fn":707,"description":708,"org":709,"tags":710,"stars":23,"repoUrl":24,"updatedAt":718},"context-doctor","Context Doctor","repair system prompt and memory degradation","Identify and repair degradation in system prompt, external memory, and skills preventing you from following instructions or remembering information as well as you should.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[711,712,715],{"name":21,"slug":22,"type":16},{"name":713,"slug":714,"type":16},"AI Context","ai-context",{"name":716,"slug":717,"type":16},"Debugging","debugging","2026-07-13T06:22:50.151002",{"slug":720,"name":720,"fn":721,"description":722,"org":723,"tags":724,"stars":23,"repoUrl":24,"updatedAt":728},"converting-mcps-to-skills","connect MCP servers to create skills","Connect to MCP (Model Context Protocol) servers and create skills for repeated use. Load when a user wants to use an MCP server, connect to external tools via MCP, or when they mention MCP, model context protocol, or specific MCP servers.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[725,726,727],{"name":21,"slug":22,"type":16},{"name":684,"slug":685,"type":16},{"name":18,"slug":19,"type":16},"2026-07-13T06:23:37.646079",{"slug":730,"name":730,"fn":731,"description":732,"org":733,"tags":734,"stars":23,"repoUrl":24,"updatedAt":740},"creating-mods","create and edit Letta Code mods","Creates and edits trusted local Letta Code mods, including tools, slash commands, local-only model providers, lifecycle\u002Fturn events, scoped conversation helpers, panels, and capability-gated behavior. Use when asked to make a mod, add an agent-callable tool, add a slash command, add a local provider\u002Fmodel adapter, transform turns, react to app events, or add lightweight mod UI outside the dedicated \u002Fstatusline flow.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[735,736,737],{"name":21,"slug":22,"type":16},{"name":684,"slug":685,"type":16},{"name":738,"slug":739,"type":16},"Coding","coding","2026-07-23T05:42:38.133565",{"slug":742,"name":742,"fn":743,"description":744,"org":745,"tags":746,"stars":23,"repoUrl":24,"updatedAt":754},"creating-skills","create and update agent skills","Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Letta Code's capabilities with specialized knowledge, workflows, or tool integrations.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[747,748,751],{"name":21,"slug":22,"type":16},{"name":749,"slug":750,"type":16},"Documentation","documentation",{"name":752,"slug":753,"type":16},"Plugin Development","plugin-development","2026-07-13T06:22:56.998659",{"slug":756,"name":756,"fn":757,"description":758,"org":759,"tags":760,"stars":23,"repoUrl":24,"updatedAt":764},"customizing-commands","create and manage Letta slash commands","Creates, edits, and enables Letta Code mod-provided slash commands. Use when the user asks to add a custom \u002Fcommand, slash command, command shortcut, scoped conversation-backed command, or command-driven panel behavior.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[761,762,763],{"name":21,"slug":22,"type":16},{"name":684,"slug":685,"type":16},{"name":14,"slug":15,"type":16},"2026-08-21T03:33:04.239247",23,{"items":767,"total":872},[768,774,780,786,792,798,804,810,821,833,849,860],{"slug":677,"name":677,"fn":678,"description":679,"org":769,"tags":770,"stars":23,"repoUrl":24,"updatedAt":689},{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[771,772,773],{"name":21,"slug":22,"type":16},{"name":684,"slug":685,"type":16},{"name":687,"slug":688,"type":16},{"slug":691,"name":691,"fn":692,"description":693,"org":775,"tags":776,"stars":23,"repoUrl":24,"updatedAt":703},{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[777,778,779],{"name":684,"slug":685,"type":16},{"name":698,"slug":699,"type":16},{"name":701,"slug":702,"type":16},{"slug":705,"name":706,"fn":707,"description":708,"org":781,"tags":782,"stars":23,"repoUrl":24,"updatedAt":718},{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[783,784,785],{"name":21,"slug":22,"type":16},{"name":713,"slug":714,"type":16},{"name":716,"slug":717,"type":16},{"slug":720,"name":720,"fn":721,"description":722,"org":787,"tags":788,"stars":23,"repoUrl":24,"updatedAt":728},{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[789,790,791],{"name":21,"slug":22,"type":16},{"name":684,"slug":685,"type":16},{"name":18,"slug":19,"type":16},{"slug":730,"name":730,"fn":731,"description":732,"org":793,"tags":794,"stars":23,"repoUrl":24,"updatedAt":740},{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[795,796,797],{"name":21,"slug":22,"type":16},{"name":684,"slug":685,"type":16},{"name":738,"slug":739,"type":16},{"slug":742,"name":742,"fn":743,"description":744,"org":799,"tags":800,"stars":23,"repoUrl":24,"updatedAt":754},{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[801,802,803],{"name":21,"slug":22,"type":16},{"name":749,"slug":750,"type":16},{"name":752,"slug":753,"type":16},{"slug":756,"name":756,"fn":757,"description":758,"org":805,"tags":806,"stars":23,"repoUrl":24,"updatedAt":764},{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[807,808,809],{"name":21,"slug":22,"type":16},{"name":684,"slug":685,"type":16},{"name":14,"slug":15,"type":16},{"slug":811,"name":811,"fn":812,"description":813,"org":814,"tags":815,"stars":23,"repoUrl":24,"updatedAt":820},"customizing-statusline","customize Letta Code statusline mods","Creates, edits, and migrates Letta Code statusline mods. Use when handling the \u002Fstatusline command or continuing work started by \u002Fstatusline.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[816,817],{"name":14,"slug":15,"type":16},{"name":818,"slug":819,"type":16},"Engineering","engineering","2026-07-13T06:23:27.465985",{"slug":822,"name":822,"fn":823,"description":824,"org":825,"tags":826,"stars":23,"repoUrl":24,"updatedAt":832},"dispatching-coding-agents","dispatch stateless coding agents","Dispatch stateless coding agents (Claude Code or Codex) via Bash. Use when you're stuck, need a second opinion, or need parallel research on a hard problem. They have no memory — you must provide all context.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[827,828,829],{"name":21,"slug":22,"type":16},{"name":738,"slug":739,"type":16},{"name":830,"slug":831,"type":16},"Multi-Agent","multi-agent","2026-07-26T05:46:56.388845",{"slug":834,"name":834,"fn":835,"description":836,"org":837,"tags":838,"stars":23,"repoUrl":24,"updatedAt":848},"editing-letta-code-desktop-preferences","edit Letta Code Desktop preferences","Edits Letta Code Desktop (LCD) preferences by safely reading and updating ~\u002F.letta\u002Fdesktop_preferences.json. Use only when the user asks to change current Desktop\u002FLCD settings such as theme, default working directory, remote access preference, or remote environment name via the preferences JSON.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[839,842,845],{"name":840,"slug":841,"type":16},"Configuration","configuration",{"name":843,"slug":844,"type":16},"Desktop","desktop",{"name":846,"slug":847,"type":16},"Themes","themes","2026-08-27T13:07:27.258249",{"slug":850,"name":850,"fn":851,"description":852,"org":853,"tags":854,"stars":23,"repoUrl":24,"updatedAt":859},"finding-agents","locate and manage agents on server","Find other agents on the same server. Use when the user asks about other agents, wants to migrate memory from another agent, or needs to find an agent by name or tags.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[855,856],{"name":21,"slug":22,"type":16},{"name":857,"slug":858,"type":16},"Management","management","2026-08-27T13:07:30.0821",{"slug":861,"name":861,"fn":862,"description":863,"org":864,"tags":865,"stars":23,"repoUrl":24,"updatedAt":871},"generating-mod-envs","generate Letta mod learning environments","Generates and reviews mod learning env JSON files for Letta Code local mods. Use when asked to teach, learn, or optimize a mod behavior; create, draft, validate, improve, or explain envs for `\u002Fmods learn --env`; or design evaluation scenarios, memory fixtures, requiredResultMarkers, requiredTraceMarkers, negative controls, and candidate diversity hints.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":11},[866,867,870],{"name":21,"slug":22,"type":16},{"name":868,"slug":869,"type":16},"AI Infrastructure","ai-infrastructure",{"name":840,"slug":841,"type":16},"2026-07-13T06:23:08.838181",73]