Aug 27, 2026
Dogfooding test impact: Blastline on CGraph's own PRs
CGraph builds a graph of itself on every PR and lets Blastline pick the tests. Eleven PRs in: six real subsets, five "run everything" — all five from one file.
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— 5 posts tagged
ci
Aug 20, 2026
Blastline v0.4–v0.8: a standing safety audit, and the barrier that fixed Go
Four releases since launch: cross-repo seams, C/C++, base-graph automation, a safety-audit loop that runs on every merge, and the dispatch barrier that cut Go selections by a third without losing a single test.
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Aug 20, 2026
Our test-impact benchmark was lying — so we built an oracle that could not
Blastline scored 6/12 on tokio and it looked like a recall crisis. A dependency-filtered oracle showed five of the six "misses" depended on nothing — and chasing the one real miss uncovered a macro-blindness bug in CGraph. Tokio reachability went 0.59 → 0.91.
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Aug 19, 2026
Blastline: graph-backed test impact analysis for CI
Blastline picks the tests a diff actually reaches by querying a CGraph code graph — deterministic, fail-open, benchmarked on 80 historical commits. Now open source.
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Jul 12, 2026
Deterministic code-graph diffing on every pull request
CGraph extraction is deterministic: the same tree yields the same graph. That makes a code graph diffable in CI with the one-shot CLI and plain diff tooling.
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