{"slug": "trail-dev-usetrail-trail-1-25-2", "title": "Trail (dev.usetrail/trail@1.25.2)", "summary": "Trail v1.25.2, an issue tracker and durable project memory tool for coding agents, was published to the official MCP registry on 2026-09-02 and is distributed as usetrail on npm. The registry listing declares 2 environment variables (TRAIL_API_URL and TRAIL_PROJECT) and is filed under Filesystem by the mcpindex index, which reported a semantic screen pass with no manipulation pattern found in the description.", "body_md": "[← Index](/leaderboard)\n\n# Trail\n\nIssue tracker and durable project memory for your coding agent, scoped to the folder you open.\n\nThe current version, v1.25.2, was published to the official MCP registry on 2026-09-02. It is distributed as usetrail on npm, filed under Filesystem by this index, and declares 2 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; [the index's current counts](/stats) put this record in context.\n\n## Using Trail in Claude, Cursor, Gemini CLI, Cline, or Zed?\n\nMCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and **HOLDs the call** when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use **Install this server** for that).\n\nRewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less\n\n```\nuv tool install mcpindex-gate && mcpindex-config-wire\n```\n\n[method](/methodology)\n\nSemantic screen found no manipulation pattern in the description. Conformance probe not yet run.\n\n`mcpindex.integrity.description`\n\npassINFOevidence“Benign tool description”via static_description\n\n- - Semantic screen only - the deterministic conformance probe has not run on this server\n- - Confidence is reported but not yet calibrated (v1)\n- - Screen reads the tool description, not the live behavior\n- - advisory\n- - registry description only no input schema\n- - screen model 8b\n- - The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not\n\nSemantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.\n\nOwn this server? [Screen its description →](/screen)\n\n## That verdict was true at screening time (snapshot 2026-09-02).\n\nContracts can change after screening, with no version bump. The gate pins Trail’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.\n\n[See your first HOLD in 2 minutes →](/guides/install-the-gate-first-hold)\n\nRelated: [how to trust an MCP server](/guides/how-to-trust-an-mcp-server) · [screen before install](/guides/screen-mcp-server-before-install) · [silent contract drift](/guides/mcp-silent-contract-drift)\n\nPeople vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.\n\n```\n[Independent trust record for Trail](https://mcpindex.ai/server/dev-usetrail-trail) - screening verdict, registry provenance, and contract drift monitoring.\n<a href=\"https://mcpindex.ai/server/dev-usetrail-trail\">Independent trust record for Trail</a> - screening verdict, registry provenance, and contract drift monitoring.\n```\n\nA live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.\n\n```\n[![mcpindex](https://mcpindex.ai/api/v1/badge/dev-usetrail-trail)](https://mcpindex.ai/server/dev-usetrail-trail)\n<a href=\"https://mcpindex.ai/server/dev-usetrail-trail\"><img src=\"https://mcpindex.ai/api/v1/badge/dev-usetrail-trail\" alt=\"mcpindex verdict\" height=\"20\" /></a>\n```\n\n`TRAIL_API_URL`\n\nOnly for a self-hosted Trail. Left unset, the connector points at the hosted service.\n\n`TRAIL_PROJECT`\n\nOverrides the project name, which otherwise comes from the folder you have open.\n\n[methodology](/methodology)\n\n[Synapse RMCPai.dinglebear/synapse](/server/ai-dinglebear-synapse)\n\nHost, Docker, Compose, SSH, logs, ZFS, and file operations over MCP and CLI.\n\n[UNITEMFG U.S. Manufacturer Directorycom.unitemfg/us-manufacturing-directory](/server/com-unitemfg-us-manufacturing-directory)\n\nSearch verified U.S. manufacturers with provenance, freshness, and live directory statistics.\n\n[dev.yafl/mcpdev.yafl/mcp](/server/dev-yafl-mcp)\n\nAgent-first E2EE file transfer over MCP: move files between machines in one tool call, gone in 24h.", "url": "https://wpnews.pro/news/trail-dev-usetrail-trail-1-25-2", "canonical_source": "https://mcpindex.ai/server/dev-usetrail-trail", "published_at": "2026-09-02 14:16:33+00:00", "updated_at": "2026-09-02 14:53:24.492639+00:00", "lang": "en", "topics": ["developer-tools", "ai-tools", "ai-agents"], "entities": ["Trail", "usetrail", "MCP registry", "mcpindex", "Claude", "Cursor", "Gemini CLI", "Cline"], "alternates": {"html": "https://wpnews.pro/news/trail-dev-usetrail-trail-1-25-2", "markdown": "https://wpnews.pro/news/trail-dev-usetrail-trail-1-25-2.md", "text": "https://wpnews.pro/news/trail-dev-usetrail-trail-1-25-2.txt", "jsonld": "https://wpnews.pro/news/trail-dev-usetrail-trail-1-25-2.jsonld"}}