Decispher vs Groundrule

Decispher feeds coding agents the reasoning behind a codebase, pulling settled decisions from Slack and GitHub and carrying personal preferences between sessions.

Groundrule keeps a team's coding standards in one place, writes them into agent instruction files such as CLAUDE.md and Cursor rules, and checks each change against them.

About Decispher

Decispher targets a common problem with coding agents: each session starts without knowing what the team already agreed. Its Context Engine extracts decisions from where they were actually made, such as Slack threads, code reviews and tickets, merges repeated statements into one record and serves them to agents through MCP. A separate Memory product keeps individual working preferences across sessions, and Worker, still in early access, takes delegated engineering tasks and returns reviewable pull requests. Each part can be used on its own. Billing is credit based rather than per seat, with packs starting at 9 USD for 100 credits, 50 free credits on signup and no expiry.

About Groundrule

Groundrule is a developer tool for engineering teams whose code is increasingly written by agents like Claude Code, Cursor, GitHub Copilot and OpenAI Codex. It stores team conventions in a single rulebook, then syncs those rules into the instruction files each agent reads, including AGENTS.md and CLAUDE.md, and runs deterministic checks in CI. Teams can begin from 179 maintained standards across 14 open packs, import rules from an existing wiki, or write a fresh rule from a single sentence. Each rule gets an owner and a staged rollout. A CLI, an MCP server and an open source kernel under the Apache 2.0 license are available. Pricing is per active contributor, with a free workspace that does not expire.