Session memory for coding agents: local-first recall, drift detection, on-device inference.
The 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 put this record in context.
Using io.github.dcostenco/prism-coder in Claude, Cursor, Gemini CLI, Cline, or Zed? #
MCP 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).
Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less
uv tool install mcpindex-gate && mcpindex-config-wire
Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.
mcpindex.integrity.description passINFO
evidence“No suspicious instructions or data handling mentioned”via static_description
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- Semantic screen only - the deterministic conformance probe has not run on this server
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- Confidence is reported but not yet calibrated (v1)
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- Screen reads the tool description, not the live behavior
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- advisory
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- registry description only no input schema
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- screen model 8b
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- Still current: the description we screened is unchanged, re-checked against the registry
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- The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not
Semantic 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.
Own this server? Screen its description →
That verdict was true at screening time (snapshot 2026-09-17). #
Contracts 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.
See your first HOLD in 2 minutes →
Related: how to trust an MCP server · screen before install · silent contract drift
People 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.
[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.
<a href="https://mcpindex.ai/server/io-github-dcostenco-prism-coder">Independent trust record for io.github.dcostenco/prism-coder</a> - screening verdict, registry provenance, and contract drift monitoring.
A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.
[](https://mcpindex.ai/server/io-github-dcostenco-prism-coder)
<a href="https://mcpindex.ai/server/io-github-dcostenco-prism-coder"><img src="https://mcpindex.ai/api/v1/badge/io-github-dcostenco-prism-coder" alt="mcpindex verdict" height="20" /></a>
BRAVE_API_KEY
Brave Search API key for web search tools
GEMINI_API_KEY
Google Gemini API key for AI-powered summarization and embeddings
SUPABASE_URL
Supabase project URL for session memory and knowledge persistence
SUPABASE_KEY
Supabase service role key for database access
PRISM_USER_ID
User ID for multi-tenant row-level security isolation (defaults to 'default')
GCP_PROJECT_ID
Google Cloud project ID for Vertex AI Discovery Engine integration
VERTEX_LOCATION
Vertex AI location/region (defaults to 'global')
VERTEX_DATA_STORE_ID
Vertex AI Discovery Engine data store ID for enterprise search
Fodda Knowledge Graphsai.fodda/mcp-server
Expert-curated knowledge, brand, research & earnings intelligence — 47 tools, 220+ graphs.
Long-term memory for AI assistants. Hybrid retrieval, query expansion, auto-topics.
DeepMemio.github.deepmemteam/deepmem
Mem0-compatible persistent memory for AI agents: write facts once, recall them semantically.