v0.7.3

• Fixed assistant rendering when provider payloads contain null or sparse content blocks.
• Added authenticated host-request contracts with per-call request IDs, generation fencing, cancellation signals, and currentness checks.
• Fixed root daemon shutdown retaining cleanup ownership while kill events are in flight.
• Changed RLM family discovery to use a daemon-owned append-only spawn ledger with per-child display metadata instead of reconstructing topology from session files.
• Fixed long-running macOS supervisors losing ownership when system cleanup removed authority records from $TMPDIR.
• Fixed deleted RLM children leaking kernel snapshots while retaining their readable transcript tombstones.
• Changed Agents View subagent rows to show stable name · model/effort · summary metadata.
• Changed the default Cerebras model to the available gpt-oss-120b route and aligned cross-provider handoff fixtures with the generated catalog.
• Fixed the agent going silent after an automatic context compaction interrupted unfinished work: the tool loop now resumes when a threshold compaction fails or is skipped, and active goals keep continuing after a successful mid-goal threshold compaction.
• Changed the agents view splash hint from "type to start" to "type to search sessions".
• Added app.edits.expand (ctrl+j) to toggle edit diffs; diffs are now shown only by this toggle, and ctrl+o no longer affects them.
• Changed edit rendering so the ╰─ <path> +N -M summary line is always visible and ctrl+j toggles the diff inline beneath it, indented to the summary text.
• Fixed fullscreen wheel scrolling in Ghostty while retaining application link clicks; set terminal.fullscreenMouse to false to use native Cmd-click instead.
• Changed the agents view to sort idle and inactive sessions by last message time, newest first, while keeping running agents in stable creation order.
• Fixed openai-codex models being invisible to rlm subagents and find_models because model discovery reported Prime Agent's own version as the Codex client version (#1375 by @bilelrais).
• Added a working hint that recommends sharing traces with Prime Intellect to help train open-source LLMs.
• Restored bare prime-agent --resume opening the agents view and the /resume [id|path] slash command; bare commands open the agents view and an argument resumes that session in place.
• Fixed URLs not opening on click in fullscreen mode on terminals such as Ghostty; clicking a link in the transcript, dock, or overlays now opens it in the browser.
• Fixed ctrl+p ("Toggle agent message expansion") only toggling received agent messages; it now expands and collapses sent agent messages together with received ones.