{"slug": "io-github-dcostenco-prism-coder-io-github-dcostenco-prism-coder-20-21-2", "title": "io.github.dcostenco/prism-coder (io.github.dcostenco/prism-coder@20.21.2)", "summary": "Version 20.21.2 of io.github.dcostenco/prism-coder, a session-memory server for coding agents distributed as prism-mcp-server on npm, was published to the official MCP registry on 2026-09-17, according to the mcpindex registry index. The index reports that its semantic screen of the server's description returned a pass with status PARTIAL, finding no manipulation pattern, while the deterministic conformance probe has not yet been run. The listing is filed under Memory & RAG and declares 8 environment variables.", "body_md": "[← Index](https://mcpindex.ai/leaderboard)\n\n# io.github.dcostenco/prism-coder\n\nSession memory for coding agents: local-first recall, drift detection, on-device inference.\n\nThe current version, v20.21.2, was published to the official MCP registry on 2026-09-17. It is distributed as prism-mcp-server on npm, filed under Memory & RAG by this index, and declares 8 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](https://mcpindex.ai/stats) put this record in context.\n\n## Using io.github.dcostenco/prism-coder 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](https://mcpindex.ai/methodology)\n\nSemantic screen found no manipulation pattern in the description. Conformance probe not yet run.\n\n`mcpindex.integrity.description` passINFO\nevidence“No suspicious instructions or data handling mentioned”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- - Still current: the description we screened is unchanged, re-checked against the registry\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 →](https://mcpindex.ai/screen)\n\n## That verdict was true at screening time (snapshot 2026-09-17).\n\nContracts can change after screening, with no version bump. The gate pins io.github.dcostenco/prism-coder’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 →](https://mcpindex.ai/guides/install-the-gate-first-hold)\n\nRelated: [how to trust an MCP server](https://mcpindex.ai/guides/how-to-trust-an-mcp-server) · [screen before install](https://mcpindex.ai/guides/screen-mcp-server-before-install) · [silent contract drift](https://mcpindex.ai/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 io.github.dcostenco/prism-coder](https://mcpindex.ai/server/io-github-dcostenco-prism-coder) - screening verdict, registry provenance, and contract drift monitoring.\nIndependent trust record for io.github.dcostenco/prism-coder - 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[](https://mcpindex.ai/server/io-github-dcostenco-prism-coder)\n![\"mcpindex](\"https://mcpindex.ai/api/v1/badge/io-github-dcostenco-prism-coder\")
\n```\n\n`BRAVE_API_KEY`\nBrave Search API key for web search tools\n\n`GEMINI_API_KEY`\nGoogle Gemini API key for AI-powered summarization and embeddings\n\n`SUPABASE_URL`\nSupabase project URL for session memory and knowledge persistence\n\n`SUPABASE_KEY`\nSupabase service role key for database access\n\n`PRISM_USER_ID`\nUser ID for multi-tenant row-level security isolation (defaults to 'default')\n\n`GCP_PROJECT_ID`\nGoogle Cloud project ID for Vertex AI Discovery Engine integration\n\n`VERTEX_LOCATION`\nVertex AI location/region (defaults to 'global')\n\n`VERTEX_DATA_STORE_ID`\nVertex AI Discovery Engine data store ID for enterprise search\n\n[methodology](https://mcpindex.ai/methodology)\n\n[Fodda Knowledge Graphsai.fodda/mcp-server](https://mcpindex.ai/server/ai-fodda-mcp-server)\n\nExpert-curated knowledge, brand, research & earnings intelligence — 47 tools, 220+ graphs.\n\n[Ambercom.ambermem/amber](https://mcpindex.ai/server/com-ambermem-amber)\n\nLong-term memory for AI assistants. Hybrid retrieval, query expansion, auto-topics.\n\n[DeepMemio.github.deepmemteam/deepmem](https://mcpindex.ai/server/io-github-deepmemteam-deepmem)\n\nMem0-compatible persistent memory for AI agents: write facts once, recall them semantically.", "url": "https://wpnews.pro/news/io-github-dcostenco-prism-coder-io-github-dcostenco-prism-coder-20-21-2", "canonical_source": "https://mcpindex.ai/server/io-github-dcostenco-prism-coder", "published_at": "2026-09-17 00:00:37+00:00", "updated_at": "2026-09-17 00:55:33.397786+00:00", "lang": "en", "topics": ["ai-agents", "agent-protocols", "ai-tools", "ai-safety"], "entities": ["io.github.dcostenco/prism-coder", "prism-mcp-server", "npm", "mcpindex", "Claude", "Cursor", "Gemini CLI", "Cline"], "alternates": {"html": "https://wpnews.pro/news/io-github-dcostenco-prism-coder-io-github-dcostenco-prism-coder-20-21-2", "markdown": "https://wpnews.pro/news/io-github-dcostenco-prism-coder-io-github-dcostenco-prism-coder-20-21-2.md", "text": "https://wpnews.pro/news/io-github-dcostenco-prism-coder-io-github-dcostenco-prism-coder-20-21-2.txt", "jsonld": "https://wpnews.pro/news/io-github-dcostenco-prism-coder-io-github-dcostenco-prism-coder-20-21-2.jsonld"}}