+
+## lintcheck
+`cargo lintcheck` will build and run clippy on a fixed set of crates and generate a log of the results.
+You can `git diff` the updated log against its previous version and
+see what impact your lint made on a small set of crates.
+If you add a new lint, please audit the resulting warnings and make sure
+there are no false positives and that the suggestions are valid.
+
+Refer to the tools [README] for more details.
+
+[README]: https://github.com/rust-lang/rust-clippy/blob/master/lintcheck/README.md
+## PR
+
+We follow a rustc no merge-commit policy.
+See <https://rustc-dev-guide.rust-lang.org/contributing.html#opening-a-pr>.
+
+## Common Abbreviations
+
+| Abbreviation | Meaning |
+| ------------ | -------------------------------------- |
+| UB | Undefined Behavior |
+| FP | False Positive |
+| FN | False Negative |
+| ICE | Internal Compiler Error |
+| AST | Abstract Syntax Tree |
+| MIR | Mid-Level Intermediate Representation |
+| HIR | High-Level Intermediate Representation |
+| TCX | Type context |
+
+This is a concise list of abbreviations that can come up during Clippy development. An extensive
+general list can be found in the [rustc-dev-guide glossary][glossary]. Always feel free to ask if
+an abbreviation or meaning is unclear to you.
+
+[glossary]: https://rustc-dev-guide.rust-lang.org/appendix/glossary.html