v0.1.0

First public release — a git-style branch/merge/crop workflow plus a full-screen context panel for pi sessions. Append-only and recoverable; pinned to @earendil-works/*@0.79.1.

Commands

• /branch <name> [model] — label the current point (mirrored into pi's native labels) and fork off, optionally onto a cheaper branch model; the trunk model is recorded and restored on merge. Tab-completes model ids.
• /merge [--pick | --no-llm | --discard | --tournament] [note] — bare /merge squashes the branch into a human-confirmed ◆ decision record (mandatory editor gate — nothing lands until you save). --pick opens the mode selector; --no-llm writes the record by hand; --discard rejects; --tournament keeps the winner's record + drafted epitaphs for the sibling branches. Always navigates summarize:false so pi's own summary never double-writes.
• /crop [--top] [--auto] [--apply] [--dry-run] [--min-tokens N] [--older-than N] [--keep glob] — surgically stub fat tool/MCP results (result mode) or drop a whole Q&A turn (turn mode), append-only. --top crops the single biggest unprotected result with one inline confirm; --auto/--apply/--dry-run for rule-based and headless crops; latest-per-tool protection. Originals always recoverable.
• /undo — one-key, append-only revert of the last mutation: re-open a squashed/discarded branch, restore a crop, or undo a /branch. Nothing is deleted.
• /panel (Ctrl+Q) — full-screen context panel: tree with per-node token costs, branch status colors, top consumers, decision cards, and an entry inspector.
• /decisions [--export path] — review decision records; --export writes them to portable markdown (PR / ADR / Slack).
• pitree — standalone, read-only forest CLI across all pi projects (--dangling, --json) plus pitree ui.

Ambient UI

• Context-health gauge bar pinned above the prompt (green→red, band ticks at 5/15/40%) with a ▲ trend and jump attribution (ctx 38% ▲ +24% (chrome.snapshot)); stays honest while pi is still calibrating (band word + ~est, never a fake-precise percent). Plus a footer status, a color-hashed terminal title, a one-time >40% nudge, and a /compact philosophy warning.

Foundations

• Append-only data model (ctree/* markers) — session JSONL is never edited or deleted; every change is recoverable.
• Layered, pi-light core — core has zero pi deps; tui builds on pi-tui; extension is the only pi-facing surface; pitree is standalone.

Project & tooling

• MIT license, CONTRIBUTING.md, issue/PR templates, an SVG banner, a demo GIF, and discovery metadata on the package manifest.
• Tests — core units + committed fixtures + a 50MB perf test; tui xterm-headless harness; extension fake-pi units, real-pi RPC goldens (squash/discard/tournament/crop) and a v0.2 e2e (bare-merge, /undo, /crop --top, /decisions --export), plus a real-TUI PTY walk; pitree zero-write assertion.
• CI — lint/types/unit per push, integration against the pinned pi (keyless), and a non-blocking pi@latest drift lane.
• Release — pushing a vX.Y.Z tag runs the gate and cuts a GitHub Release from this changelog.