agentcairn vs io.github.tstockham96/engram
agentcairn is a plugin bundle for AI coding tools published by Charles C. Figueiredo. Marketplaces we read that list it: 1 (Community GitHub marketplaces). io.github.tstockham96/engram is an MCP server published by tstockham96. Marketplaces we read that list it: 2 (Official MCP Registry, Claude Code: claude-plugins-community). As of our marketplace pass on 2026-10-14. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  io.github.tstockham96/engram | |
|---|---|---|
| Community marketplace ccf/agentcairn | Listed Version: 0.4.2 No figure published Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.5.1 Downloads/month (npm): 463 Downloads/week (npm): 109 Forks (GitHub): 6 Stars (GitHub): 47 Not marked · First seen |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | agentcairn | io.github.tstockham96/engram |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | No figure on GitHub | 47 |
| Forks (GitHub) (differs) | No figure on GitHub | 6 |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (agentcairn) | On your machine (engram-sdk) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 0 | 1, secrets among them: 1 |
| Hooks it runs (differs) | 4 | Not published |
| Parts of the bundle (differs) | 11 | 5 |
| Licence (differs) | Apache-2.0 | Proprietary |
| Repository (differs) | github.com/ccf/agentcairn | github.com/tstockham96/engram |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen (differs) | 2026-10-14 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
agentcairn
Local-first agent memory for Claude Code — recall, remember, ambient capture.
io.github.tstockham96/engram
Intelligent agent memory with automatic extraction, consolidation, and bi-temporal recall.
How to run each
agentcairn As a Claude Code plugin
/plugin marketplace add ccf/agentcairn
/plugin install agentcairn@agentcairnio.github.tstockham96/engram As a local MCP server: npm package
claude mcp add --env "GEMINI_API_KEY=<YOUR_GEMINI_API_KEY>" --transport stdio engram -- npx -y engram-sdkRequires: GEMINI_API_KEY (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Only agentcairn asks for
CAIRN_VAULT
Only io.github.tstockham96/engram asks for
GEMINI_API_KEY (secret)
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: agentcairn · What it can do: io.github.tstockham96/engram · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.