We split this copilot-instructions.md into the rules it gives an agent

7 rules. About 0 are common, 6 are distinctive, and 1 is very specific to this project.

• ≈0

  Common · estimate

  Many files like this have a rule of this kind.

• ≈6

  Distinctive · estimate

  This author's own choices. Worth a look.

• 1

  Very specific

  Tied to their project's names, files or tools. Probably skip.

• Common
• Distinctive
• Very specific

1. Distinctive:

   Follow Clean Architecture principles (see ARCHITECTURE.md)

   line 16
2. Distinctive:

   Follow AGENTS.md for behavior guidelines

   line 18
3. Distinctive:

   Use Go 1.25+ features where appropriate

   line 22
4. Very specific:

   Follow error wrapping pattern: fmt.Errorf("context: %w", err)

   line 23
5. Distinctive:

   Prefer interfaces for dependencies (Dependency Inversion)

   line 24
6. Distinctive:

   Always validate inputs at boundaries

   line 34
7. Distinctive:

   Consider offline wallet implications (keygen, sign)

   line 35

≈ “Common” is an estimate: at least 1 in 5 of the 3,669 Copilot instructions 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.

• Where files are headingNew Copilot instructions files have more rules about branches and pull requests, and fewer about code style.

  Of the Copilot instructions files we read, the 2,297 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 repository62 other files it gives its agents.

  • AGENTS.mdAGENTS.md
  • internal/AGENTS.mdAGENTS.md
  • pkg/AGENTS.mdAGENTS.md
  • CLAUDE.mdCLAUDE.md
  • internal/CLAUDE.mdCLAUDE.md
  • pkg/CLAUDE.mdCLAUDE.md
  • .cursor/rules/agent-files.mdcCursor rule
  • .cursor/rules/apps/bun.mdcCursor rule
  • .cursor/rules/apps/eth-contracts.mdcCursor rule
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  • .cursor/rules/yaml.mdcCursor rule
  • llms.txtllms.txt
  • bch-developmentSkill
  • btc-terminologySkill
  • db-migrationSkill
  • devopsSkill
  • docs-ssotSkill
  • docs-updateSkill
  • fix-pr-reviewSkill
  • github-issue-creationSkill
  • git-workflowSkill
  • go-developmentSkill
  • knowledge-gapSkill
  • label-context-mappingSkill
  • makefile-updateSkill
  • mockerySkill
  • openspec-apply-changeSkill
  • openspec-archive-changeSkill
  • openspec-exploreSkill
  • openspec-proposeSkill
  • shell-scriptsSkill
  • solidity-developmentSkill
  • The first 60 shown.