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
- 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 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.
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
- 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
Both compaction serializers reproduced prior assistant reasoning as text
bound for a Claude target, tripping Anthropic's reasoning_extraction
refusal and wedging Fable 5 sessions:
- context-full: serializeConversation rendered thinking verbatim inside
<thinking> tags via the anthropic dialect renderer. Now drops thinking
blocks when the summary target dialect is anthropic; other dialects
(e.g. Harmony) keep native reasoning.
- snapcompact: emitted ¶think sections baked into replayed archive
frames. Added an includeThinking serialize option (default true) and
wired the agent session to disable it for Anthropic-dialect models.
Fixes#6093
- Added `tui.scrollbackRebuild` configuration with interactive startup/controller wiring to apply `setScrollbackRebuild`.
- Exposed prewalk session state in `SegmentContext` and rendered a dedicated prewalk segment/icon in the status line.
- Added divergence-aware TUI full-paint logic that enables scrollback erase-and-replay rebuilds for non-multiplexer divergence cases.
- Updated rendering and streaming tests to verify rebuild behavior (`3J`) and eliminate stale marker expectations under drift scenarios.
- Replaced markdown-style headings with concise `¶user:`, `¶think:`, `¶ai:`, and `¶call:` scope markers.
- Updated the serializer to merge consecutive messages or blocks of the same type under a shared prefix.
- Updated the documentation prompt to reflect the new compact formatting and scope rules.
- Added regression tests verifying scope merging and correct formatting of tool calls and intents.
- Made resolveShapeForText choose silver16-bw for CJK-heavy auto transcripts while preserving explicit variants and unsafe glyph protection.
- Added silver16-bw to the snapcompact shape settings submenu and renamed unsupported-glyph warnings.
- Covered auto shape selection, explicit variant precedence, unsafe glyph scans, and settings option parity.
Fixes#4486
fix(compaction): cap snapcompact frame payloads (#3866)
Bound rebuilt snapcompact image payloads by a per-request base64 byte
budget so long sessions stop re-sending multi-megabyte standing image
archives on every provider request; auto-compaction falls back to
context-full summaries when snapcompact output is too large.
Resolved snapcompact.ts conflict against the main font-rendering refactor
by keeping both renderabilityProbeText and the frame-budget helpers.
Fixed historyBlocks to emit the omitted-frame notice before the kept
(newer) images, since the byte budget drops the oldest frames — keeping
reconstructed blocks oldest-to-newest (addresses Codex P2 review).
Fixes#3792
Bounded persisted snapcompact image archives by base64 byte size so large sessions stop re-sending multi-megabyte frame walls on every provider request.
Auto snapcompact now falls back to context-full summaries when rendered frame payloads exceed the byte budget, and legacy oversized archives omit over-budget frames during LLM context rebuilds.
Fixes#3792
- Added Silver.ttf TrueType font support to `pi-natives` with automated fallback logic for bitmap font rendering.
- Implemented wide code point detection and cell-width calculation to improve CJK character handling and layout.
- Introduced dynamic font-aware preflight probing via `resolveShapeForText` and `renderabilityProbeText` for better font selection.
- Enabled semantic emoji folding and improved text normalization to handle non-Latin characters and emoji filtering.
- Fixed stale `preserveData.snapcompact` frames leaking into context-full compaction after switching from `snapcompact` to `context-full` strategy, which inflated context usage and made sessions appear to compact prematurely.
- Added secret redaction for migrated snapcompact archive plaintext (`text`/`textHead`/`textTail`) during the snapcompact->context-full transition, while preserving opaque provider-replay state byte-identical.
- Added `archiveSourceText()` and `stripPreservedArchive()` utilities to snapcompact module for archive extraction and cleanup.
- Added a 10-image budget for the umans provider to match its request cap.
- Updated the unit tests to verify the correct budget assignment for umans.
Fixes#3227
- Updated the test configuration to specify an explicit compaction strategy.
- Enabled context-full compaction to match expected behavior during tests.
- Updated `render`, `renderMany`, and native snapcompact methods to return promises, ensuring scalable async execution.
- Refactored `transformProviderContext` and `buildSideRequestContext` to support asynchronous operations in agent loops.
- Integrated `Promise.all` for improved concurrency when processing frame rendering and rendering batch operations.
- Updated all internal call sites, SDK hooks, and test suites to accommodate the asynchronous API signatures.
- Removed legacy `pinnedFrames` logic and state, simplifying compaction to unconditionally re-render from the full source archive.
- Updated `historyBlocks` to reliably order archive regions (text head, imaged middle, text tail) based on the re-rendered state.
- Updated documentation and summary templates to reflect the transition to text-first compaction and the use of the new `FILES` section.
- Moved the `INTENT_FIELD` constant from `@oh-my-pi/pi-agent-core` to the specialized `@oh-my-pi/pi-wire` package to permit broader usage across the monorepo.
- Updated all references across `agent`, `ai`, `coding-agent`, `collab-web`, and `snapcompact` packages to import the constant from the new location.
- Added `@oh-my-pi/pi-wire` as a dependency to all affected packages.
- Standardized elision markers across all tool outputs and filters to use cohesive `[...N [type] elided...]`, `[...Nln elided...]`, and `[...xB elided...]` syntax.
- Updated documentation, prompts, and test expectations to reflect the unified elision format.
- Improved transcript viewer robustness by preventing content aliasing through path-inclusive signature hashing.
- Added logic to clear stale transcript content when associated session files are deleted, accompanied by verifying test cases.
- Expand `CHAR_FOLD` dictionary to include more punctuation, dashes, arrows, and bullets.
- Added `foldToAscii` function using NFKD decomposition to better handle compatibility characters like fullwidth text, ligatures, and vulgar fractions.
- Updated elision markers from `[... N chars elided ...]` to `[... Nch elided ...]` to reduce character count and improve visual clarity.
- Implemented `AdvisorTranscriptRecorder` to persist advisor sessions to append-only `__advisor.jsonl` files.
- Integrated transcript recording into agent sessions with managed flushing, atomic file switching, and synthetic turn attribution.
- Restricted advisor-kind agents by excluding them from rosters, history protocols, messaging, and interactive agent commands.
- Reserved the `__advisor` filename stem across the output manager and task registry to prevent task ID collisions.
- Implemented structured markdown role headings and tool result merging to improve conversation readability.
- Added explicit `<out>` tags for tool result wrapping and enhanced rendering for thinking blocks.
- Refactored authentication snapshot validation to use manual structural checks instead of schema dependencies.
- Fixed instability in settings overlay scrolling and addressed assistant message splitting issues.
- Added --recover CLI option to rebuild changelog fixes from tagged history.
- Pruned Unreleased bullets that match historical released items across all tags.
- Normalized output by sorting release sections by version and compacting bullet spacing.
can1357