v0.12.0

Features

• Telemetry now includes an estimated USD cost (cost_usd_estimated) for dispatches and run summaries, so spend from providers like Codex that don't report actual USD is no longer unknowable; this is a list-price estimate derived from token counts, shown alongside (never overwriting) any reported cost.
• Cost estimates are computed from a new configurable pricing block (rates, tiers, and a version stamp), so pricing can be updated without a new release.
• The default Codex model preset moves from gpt-5.4-* to gpt-5.6-sol/terra/luna, since the old model IDs are stale and had no matching price data.

Bug Fixes

• Fixed a bug where a discarded file (like cmd/build.go) could falsely count as covering a check's acceptance criterion just because its extension happened to match part of an unrelated module name; this was causing real failures to be silently marked as passing on several languages including Go, Java, Kotlin, Scala, and Python.
• .pyi type-stub files are no longer treated as importable source, which fixes both a class of false "check passed" results and a related case where a genuinely broken check was incorrectly marked as covered.
• .svelte, .cts, and .mts files are now correctly recognized when matching a failing check to a file your agent discarded, closing gaps where Svelte components or TypeScript helpers reached via compiled .mjs specifiers weren't detected.
• Editing a Gemfile, Gemfile.lock, *.gemspec, composer.json, or composer.lock now correctly re-triggers dependency installation before the next verify, so Ruby and PHP projects no longer verify against a worktree with stale dependencies.
• Fixed file paths containing non-ASCII characters (accented letters, CJK, Cyrillic) or newlines being mangled when read from git, which could prevent dependency-manifest changes from re-triggering installs, break file-based check routing, and cause file lookups to silently fail.
• Corrected the exit-code documentation in the README and runtime-parameters guide to match actual behavior: there is no exit code 2, escalations exit 75 (not 1) and are distinct from parked runs (only parked runs can be resumed), and previously undocumented exit codes 64, 70, and 78 are now listed.
• Fixed the brew install command in the README, which was missing the tap prefix.