The default snapcompact frame fonts (X.org 8x13 for every provider, plus the selectable 6x12 and legacy 5x8) drew digit zero as a bare oval visually indistinguishable from letter O. Image-based compaction OCRs the frames back, so 0 and O were mixed up and compacted identifiers (e.g. Slack IDs) got corrupted.
Zero now carries a disambiguating interior mark the O lacks: an ascending slash in 8x13 and a center bar in 6x12/5x8. unscii-8 (8x8/6x6u shapes) already shipped a slashed zero and is unchanged.
Fixes#8713
- Remove redundant definedness, null, and type checks across test suites in multiple packages.
- Clean up unused assertions, metadata tests, and obsolete test cases.
- Add good versus bad test filter guidelines and requirements to project documentation.
- Bound PAX sparse record memory overhead by caching sparse markers and specific keys.
- Update system prompt phrasing and tests for tool inventory and date displays.
- Added Google provider thinking configuration parameters and force-reasoning-off controls.
- Implemented MCP SSE stream resumption using Last-Event-ID and `SSEResumeError`.
- Added support for TAR old-GNU sparse extension blocks, path length checks, and archive entry overrides.
- Restricted external thinking support to specific models and added semver fallback parsing.
- Added the `--external-thinking` CLI flag alongside model capability checks to gate external thinking tool availability.
- Updated Anthropic and Google transports to honor `forceReasoningOff` for native thinking-off controls.
- Renamed the `thoughts` property and parameter to `notes` across think fixtures, tools, and tests.
- Updated system prompt instructions and test suites to verify transport-specific thinking and tool activation.
- Refactored and condensed numerous system prompts, agent instructions, and tool documentation files across packages.
- Streamlined workflow rules, formatting constraints, and execution guidelines for improved clarity and brevity.
- Updated discovery rules, recommendation criteria, and syntax standards in prompt templates.
Versionless Fable/Mythos aliases (bundled claude-fable-latest) never parse a numeric version, so the parser path missed them and they fell to the 1568px default. Restored the /claude.*(fable|mythos)/i rule ahead of the generic Claude rule, mapping to the shared high-res tier.
Added regressions for anthropic/claude-fable-latest and its ~ prefixed alias.
Replaced the local Opus version regex with the shared catalog Anthropic identity and semantic-version parser. This recognizes both kind-first and version-first model IDs, provider proxy prefixes, and multi-digit minor versions while preserving the 4.7 floor.
Added regressions for anthropic--claude-4.8-opus and claude-opus-4-10.
MODEL_VARIANTS gated the 1932px frame tier on /claude-?opus-?4[.-][7-9]/i,
so claude-opus-5 fell through to the generic /claude/i entry and rendered at
the 1568px default reserved for older lines that downscale. The 1932px tier
tracks the Anthropic 4,784 visual-token cap — a family-wide billing property
opus-5 shares with opus-4-8 — so the version bound was stale rather than a
per-version eval gap.
Widened the pattern to cover Opus 5 and later; 4.0-4.6 still keep the safe
1568px default. Documented why 1932 specifically (largest square not
downscaled under the 4,784-patch cap, kept below the 2000px per-image limit).
Added regression assertions for opus-5/opus-6 (high-res) and opus-4-6
(default).
Fixes#8256
- Added a new SQuAD-based context-compression benchmark script for evaluating recall conditions.
- Added model and shape command-line arguments along with pricing and shape configurations.
- Updated default model variants and added an unknown billing family to shape resolution.
- Updated shape resolution and model resolution tests to verify the new defaults.
- Collected distinct rendered frame widths for resume summaries.
- Covered mixed HQ/LQ archives with the existing foveation regression.
- Documented the fix in the snapcompact changelog.
Fixes#6712
can1357