claim

An advisory by default: it explains, and blocks nothing, on a measurement, a comparison or a completion with no evidence in its sentence or bullet.

What it catches

A measurement, a comparison or a completion with no evidence in its sentence or bullet.

Dimension

evidence: a claim says more or less than what was shown. A finding is counted on the dimension of its rule, the cost it names to the reader.

Why

A claim a reader cannot check reads as boasting or as a guess. Evidence is a code span naming a test or command, a link, an issue or commit, or an output ref. It advises: over the last 200 merged pull requests it fired in 21, and about half of those state a setting ("a 300s bound") rather than measure. A sentence that states a limit ("Not measured on Linux") is exempt. Measured 2026-10-11 over the adjudicated labeling round 2: 51.1% precision (23 of 45) before, 74.2% (23 of 31) after. A figure after a determiner or a limit's noun ("a fixed 60ms", "a limit of 40%"), a supposed, quoted or confidence figure ("99% sure"), a ratio beside the line counts it comes from, a comparison stating a purpose or an aside ("to keep it smaller") and "fixes" before a preposition are left alone. Labeling round 4 measured 22 of 40, a lower bound of 0.40, which each graded finding weighs.

Default decision

The code is PRF3001. The decision depends on the kind of text judged:

Changing it

A decisions table sets this rule to deny, advise or off, for everything judged or for the files a glob matches. Proofread reads the table from the file its -decisions flag names:

{
  "rules": {"claim": "deny"},
  "paths": {"blog/**": {"claim": "off"}}
}

rules applies to every file. A glob in paths applies to the files it matches, and the last match wins. A rule set to off never reports.

Seeing it

A finding names the rule, its code and the decision that applies, and links here:

{"rule": "claim", "code": "PRF3001", "decision": "advise", "url": "https://eli.gladman.cc/magus/reference/proofread/claim/"}

proofread rules prints this entry with every other rule's.

See also

• All proofread rules - every rule, grouped by what it checks
• Writing rules - how the rules apply to this repository's pages and pull requests
• The findings contract - the fields every finding carries