Capsule runs on your own machine — the client starts it, so there is no endpoint to ping. 68 installs a week from npm. Last commit 3 Jul 2026.
Compact, source-linked context packs that reduce token waste for coding agents.
What the code does
We read the source, 23 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
execFile(which, [name], (err) => resolve(err === null));
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add capsule -- npx -y capsulectx{
"mcpServers": {
"capsule": {
"args": [
"-y",
"capsulectx"
],
"command": "npx"
}
}
}[mcp_servers.capsule]
command = "npx"
args = ["-y", "capsulectx"]{
"mcpServers": {
"capsule": {
"args": [
"-y",
"capsulectx"
],
"command": "npx"
}
}
}{
"mcpServers": {
"capsule": {
"args": [
"-y",
"capsulectx"
],
"command": "npx"
}
}
}Alternatives to Capsule
same job, measured the same wayToken-bounded repository context for coding agents over MCP.
Local code search and task context packs for coding agents
Deterministic context packing for AI coding agents; measured 83% fewer input tokens, local.
Run efficiency for coding agents: share of paid tokens that became output, not context re-reading.
Read-only, commit-pinned repository context for coding agents.
Open-source licence risk checks for AI coding agents and dependency trees.
Field evidence for coding agents: what AI builders shipped, broke, and fixed. Dated, source-linked.
Code knowledge graph over MCP: token-budgeted context for AI coding agents.
Capsule — questions
Answers built from our own checks of this server.