Install Assertion Memory

Pick the tool you already use. It keeps what you decided and why, and brings it back in later sessions. Free for individual developers, including at work, and you sign in as part of the install.

One memory across all of them. Shared spaces, where teammates recall each other's decisions, come with a Team seat.

“Our team works from one shared memory. When someone picks up our algorithm work, their coding agent already knows what everyone else has tried and why, so we build on each other's work instead of repeating it. Day to day, it's also made my LLM interactions more productive.”

Jeff Ginn, Managing Director, SimpleRose

“My architecture work needs to consider hundreds of components over long timelines. With Assertion, I spend less time assembling and maintaining context. It gives each new Claude Code session fast access to my whole history of decisions, without blowing the token budget.”

Benjamin Jordan, Architect, Powerhouse; former CTO, Big Run Studios

Measured on BEAM 100K, a public long-term memory benchmark

81.1%

overall score

Hindsight, the leading memory system: 77.9%

98.3%

summarizing many sessions

Hindsight: 78.3%

31% less

memory per question

12.2k tokens vs 17.7k

Same answer model and judge for both. Ahead in all three runs; every answer is published. See the benchmark →