282 pages for trigger.

Understanding MCP servers Model Context Protocol · in the page docs/draft/learn/server-concepts …s. Tools can write to databases, call external APIs, modify files, or trigger other logic. | Search flights Send messages Create calendar events | Model | | **Resources** | Passive data sources that p… Configuration and flags Model Context Protocol · in the page docs/draft/tools/inspector/configuration …rypted is left in place. Setting `MCP_INSPECTOR_SECRET_STORE=keyring` triggers the same hand-off. Choosing `file` or `memory` never copies anything out of the keychain. ## Catalog file format A cata… Protocol eras Model Context Protocol · in the page docs/draft/tools/inspector/protocol-eras …t`. * **Invalid Parameters**: any other `-32602`. Reproduce with the `trigger_invalid_params` tool in the config above. The two share one error code, so the Inspector reads the message to tell them a… Web client Model Context Protocol · in the page docs/draft/tools/inspector/web …nt-scope response**, which decides whether a `403 insufficient_scope` triggers [step-up](https://modelcontextprotocol.io/docs/draft/tools/inspector/authorization.md#mid-session-re-authorization) or su… Local Server Security Model Context Protocol · in the page docs/draft/tutorials/security/local-server-security …at connect stdio clients to remote servers have had critical flaws triggered by nothing more than connecting to a malicious endpoint, and local developer tools listening on a port have been e… Security Best Practices Model Context Protocol · in the page docs/draft/tutorials/security/security_best_practices …Service interaction**: POST requests (e.g., to token endpoints) can trigger mutations on internal services * **Firewall bypass**: The MCP client acts as a proxy, bypassing network perimeter contro… How to Automate Publishing with GitHub Actions Model Context Protocol · in the page registry/github-actions …={null} name: Publish to MCP Registry on: push: tags: ["v*"] # Triggers on version tags like v1.0.0 jobs: publish: runs-on: ubuntu-latest permissions: id-token: write # Require… SEP-2149: MCP Group Governance and Charter Template Model Context Protocol · in the page seps/2149-working-group-charter-template …p 2: Formal Vote (when lazy consensus is blocked)** A formal vote is triggered when: * A WG Member blocks during the lazy consensus period * A Lead or three or more WG Members request a formal vote… SEP-2243: HTTP Header Standardization for Streamable HTTP Transport Model Context Protocol · in the page seps/2243-http-standardization …ion names and tenant IDs — these are invariably plain ASCII and never trigger Base64 encoding. Option 4 makes all values opaque to intermediaries. Option 3 leaves intermediaries unable to distinguish… SEP-2322: Multi Round-Trip Requests Model Context Protocol · in the page seps/2322-MRTR …ield (a link to the original work item). ##### Round 1 — Tool call triggers state change, server elicits Resolution 1. The client invokes the `update_work_item` tool to resolve Bug #4522: ```… SEP-2549: TTL for List Results Model Context Protocol · in the page seps/2549-TTL-for-list-results …next access. Clients SHOULD NOT treat TTL as a polling interval that triggers automatic background refetches. The TTL is a **freshness hint**: the client checks freshness when it needs the list, and… SEP-2567: Sessionless MCP via Explicit State Handles Model Context Protocol · in the page seps/2567-sessionless-mcp …2. **Elicitation and sampling intermediate state.** When a tool call triggers an `elicitation/create` or `sampling/createMessage` round-trip, the server has to correlate the eventual response with th… SEP-2640: Skills Extension Model Context Protocol · in the page seps/2640-skills-extension …so a `read_skill` call naming a pair the registry has not seen is the trigger for `skills/get`. Both tool signatures above include `server` because two connected servers may both serve `skill://refun… SEP-3392: Extension Lifecycle Model Context Protocol · in the page seps/3392-extension-lifecycle …tal-ext-interceptors`, `experimental-ext-variants`, `experimental-ext-triggers-events`, `experimental-ext-tool-annotations` | Experimental | No change | * The classified extensions need no new SEP. T… Ping Model Context Protocol · in the page specification/2024-11-05/basic/utilities/ping …D** be treated as connection failures * Multiple failed pings **MAY** trigger connection reset * Implementations **SHOULD** log ping failures for diagnostics Prompts Model Context Protocol · in the page specification/2024-11-05/server/prompts …able to explicitly select them for use. Typically, prompts would be triggered through user-initiated commands in the user interface, which allows users to naturally discover and invoke available pro… Ping Model Context Protocol · in the page specification/2025-03-26/basic/utilities/ping …D** be treated as connection failures * Multiple failed pings **MAY** trigger connection reset * Implementations **SHOULD** log ping failures for diagnostics Prompts Model Context Protocol · in the page specification/2025-03-26/server/prompts …able to explicitly select them for use. Typically, prompts would be triggered through user-initiated commands in the user interface, which allows users to naturally discover and invoke available pro… Ping Model Context Protocol · in the page specification/2025-06-18/basic/utilities/ping …D** be treated as connection failures * Multiple failed pings **MAY** trigger connection reset * Implementations **SHOULD** log ping failures for diagnostics Prompts Model Context Protocol · in the page specification/2025-06-18/server/prompts …able to explicitly select them for use. Typically, prompts would be triggered through user-initiated commands in the user interface, which allows users to naturally discover and invoke available pro… Authorization Model Context Protocol · in the page specification/2025-11-25/basic/authorization …own client and fetches that URL. A malicious client could use this to trigger the authorization server to make requests to arbitrary URLs, such as requests to private administration endpoints the auth… Ping Model Context Protocol · in the page specification/2025-11-25/basic/utilities/ping …D** be treated as connection failures * Multiple failed pings **MAY** trigger connection reset * Implementations **SHOULD** log ping failures for diagnostics Elicitation Model Context Protocol · in the page specification/2025-11-25/client/elicitation …s possible: 1. A malicious user (Alice) connected to a benign server triggers an elicitation request 2. The benign server generates an authorization URL, acting as an OAuth client of a third-party au… Prompts Model Context Protocol · in the page specification/2025-11-25/server/prompts …able to explicitly select them for use. Typically, prompts would be triggered through user-initiated commands in the user interface, which allows users to naturally discover and invoke available pro… Subscriptions Model Context Protocol · in the page specification/2026-07-28/basic/patterns/subscriptions …dicates an unexpected disconnect, which the client **MAY** treat as a trigger to reconnect. On **stdio**, if the connection is terminated and then re-established, the client **MUST** re-send `subscri… Elicitation Model Context Protocol · in the page specification/2026-07-28/client/elicitation …s possible: 1. A malicious user (Alice) connected to a benign server triggers an elicitation request 2. The benign server generates an authorization URL, acting as an OAuth client of a third-party au… Prompts Model Context Protocol · in the page specification/2026-07-28/server/prompts …Prompt content is defined by the server. Typically, prompts would be triggered through user-initiated commands in the user interface, which allows users to naturally discover and invoke available pro… Caching Model Context Protocol · in the page specification/2026-07-28/server/utilities/caching …access. Clients **SHOULD NOT** treat TTL as a polling interval that triggers automatic background refetches. The TTL is a freshness hint: the client checks freshness when it needs the data, and re-f… Subscriptions Model Context Protocol · in the page specification/draft/basic/patterns/subscriptions …dicates an unexpected disconnect, which the client **MAY** treat as a trigger to reconnect. On **stdio**, if the connection is terminated and then re-established, the client **MUST** re-send `subscri… Elicitation Model Context Protocol · in the page specification/draft/client/elicitation …s possible: 1. A malicious user (Alice) connected to a benign server triggers an elicitation request 2. The benign server generates an authorization URL, acting as an OAuth client of a third-party au… Prompts Model Context Protocol · in the page specification/draft/server/prompts …Prompt content is defined by the server. Typically, prompts would be triggered through user-initiated commands in the user interface, which allows users to naturally discover and invoke available pro… Caching Model Context Protocol · in the page specification/draft/server/utilities/caching …access. Clients **SHOULD NOT** treat TTL as a polling interval that triggers automatic background refetches. The TTL is a freshness hint: the client checks freshness when it needs the data, and re-f…