Provenance Record

Well structured (Overview / What We Know / What's New About It / What We Don't Know). Technical, precise, neutral. Length appropriate for News (907 words). Strong Rule 9 discipline: 5 of 5 sources are GitHub-official primary publications. The competitive framing in the lead ('stepping onto Cursor and Claude Code's turf') is editorial-news-headline style, not a fabricated technical claim.

{"source-0":{"url":"https://github.blog/changelog/2026-05-14-github-copilot-app-is-now-available-in-technical-preview/","snapshot":"source-0.html.gz","status":"GitHub Changelog (May 14, 2026). Verifies launch date + 'GitHub-native desktop experience' positioning + Pro/Pro+/Business/Enterprise rollout tiers verbatim."},"source-1":{"url":"https://github.com/features/preview/github-app","snapshot":"source-1.html.gz","status":"Official GitHub product preview page. Verifies the 'parallel agents' positioning, MCP servers + custom skills, 'Pick up an issue or PR / review the diff / merge' agent-loop verbatim, paid-subscription gate."},"source-2":{"url":"https://docs.github.com/en/copilot/concepts/agents/github-copilot-app","snapshot":"source-2.html.gz","status":"Primary publication (Rule 9): GitHub Docs concepts page. Verifies the full 'desktop application for agent-driven development' framing, dedicated git worktree + branch isolation, three session modes (Interactive/Plan/Autopilot) verbatim, multiple LLMs + reasoning effort per session, scheduled workflows, Pro/Pro+ waitlist gate."},"source-3":{"url":"https://github.com/github/app","snapshot":"source-3.html.gz","status":"Primary publication (Rule 9): official github/app repository hosting the desktop client. Verifies the full platform-builds list (Mac Apple Silicon / Windows / Linux recommended, Mac Intel / Windows ARM alternate) verbatim, 6-release cadence with v0.2.5 latest at May 15."},"source-4":{"url":"https://github.blog/changelog/2026-04-13-fix-merge-conflicts-in-three-clicks-with-copilot-cloud-agent/","snapshot":"source-4.html.gz","status":"April 13 GitHub Changelog. Verifies the 'Fix with Copilot' cloud-agent feature framing and the 'Click the button, and a comment is prepopulated... fixes the conflicts, checks that the build and tests still pass, and pushes' explanation verbatim."}}

Exemplary submission with textbook Rule 9 discipline — all five sources are official GitHub primary publications (changelog, product preview, docs page, releases repo, and the prior April changelog). Every specific verified verbatim: May 14 launch date, 'GitHub-native desktop experience to start agentic development' full positioning quote verbatim, 'Pro and Pro+' early-access framing + 'Business and Enterprise rolls out through the week' verbatim, 'Run multiple agent sessions across repos, each isolated and tracked in real time' verbatim, 'requires an active paid GitHub Copilot subscription' verbatim, MCP servers + custom skills extensibility, 'Pick up an issue or PR from your inbox, put agents on it, review the diff, and merge' agent-loop framing verbatim, 'desktop application for agent-driven development that brings parallel workstreams, GitHub integration, and PR lifecycle management into one place' docs framing verbatim, 'dedicated git worktree and branch' isolation model verbatim, three session modes (Interactive / Plan / Autopilot) verbatim with their parenthetical descriptions, 'Select from multiple LLMs and adjust reasoning effort per session' verbatim, 'Save recurring agent tasks and run them on a schedule or on demand' verbatim, 'join the waitlist' Pro/Pro+ gate verbatim, full platform-builds list (Apple Silicon, Windows, Linux, Mac Intel, Windows ARM) verbatim, 6 releases (v0.2.0–v0.2.5) cadence with v0.2.5 May 15 published date. The April Fix-with-Copilot changelog cross-reference with full quoted explanation verbatim.