Jcode

jcode is an open-source AI coding agent for the terminal, written in Rust. Durable memory, background tasks, and agent swarms, installed with one command.

jcode is an open-source AI coding agent for the terminal, written in Rust. Durable memory, background tasks, and agent swarms, installed with one command. curl -fsSL https://jcode.sh/install | bash copy macOS Linux Windows All builds · Docs · Pricing · GitHub The bottleneck to massive parallelism is resource efficiency. Spawn dozens of agents and RAM consumption balloons, unfeasible on most consumer machines: when each agent takes hundreds of megabytes, you run a handful and queue your work behind them. Jcode fixed that. We optimize to the bone so spawning another agent is a non-decision and running dozens of sessions is actually possible, with none of it traded for speed. Every number below…

• uncontaminatable by construction: there is no answer to memorize, so everything can be public
• hard to saturate by construction: scored on optimization depth, so the ceiling stays open past the frontier
• deterministic by construction: same submission, same score, always
• quantifiable by construction: the metric falls out of the task definition, no rubric, no judge
• highlight Large MCP tool catalogs can now be deferred automatically to keep agent context compact
• highlight Recent session lists now use a durable metadata index for faster dashboard loading
• highlight Git integrations can now be discovered through the tool catalog
• highlight Harness API and SDK clients can now receive images embedded in transcript messages

Prices listed on the Jcode pricing page: $10/mo

Source: jcode.sh pricing page. Price checked 2026-08-21. Confirm current plans before buying.

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