dex / rules
Cursor rule116 starsChanged 12 days agoApache-2.0View on GitHub
Drive the dex analytics-engineering engine via its command contract
Where files are headingNew Cursor rule files have more rules about planning and tracking tasks, and fewer about code style.
Of the Cursor rule files we read, the 4,183 first seen in the last six months, against the older ones: the kind of rule that gained most share, and the kind that lost most. About files like this in general, not this one, and an estimate, since a kind is a pattern in the words.
In this repository5 other files it gives its agents.
- AGENTS.mdAGENTS.md
- .github/copilot-instructions.mdCopilot instructions
- exploreSkill
- maintainSkill
- transformSkill
The file
We split this dex.mdc into the rules it gives an agent
1 rule. About 0 are common, 1 is distinctive, and 0 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈1
Distinctive · estimate
This author's own choices. Worth a look.
0
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 6
Follow AGENTS.md at the repository root.
≈ “Common” is an estimate: at least 1 in 5 of the 6,668 Cursor rule files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
--- description: Drive the dex analytics-engineering engine via its command contract alwaysApply: false --- Follow [`AGENTS.md`](../../AGENTS.md) at the repository root. In short: dex's logic lives in the `exmergo-dex-core` engine. Drive it by running `uv run python -m exmergo_dex_core <subcommand>`, read the single JSON envelope it prints, and decide the next step. Never re-implement the engine in instructions. The guardrails (read-only against data, writes confined to the repo as diffs, dev-target-only builds, cost surfaced before spend, no credentials or raw rows in context, PII flagged not surfaced) are enforced in the engine. See `AGENTS.md` for the full command surface and envelope spec, and `dex procedure` for the procedure to follow (its section in `AGENTS.md`).
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
Reviews can't be read right now.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

