Changelog

Agent & API

Changelog for the Neutropic agent runtime, skills and API.

v0.1.28

September 13, 2026

  • FeatureDocs assistant endpoint: A public /help/ask route answers documentation questions from excerpts the docs site sends, streamed in the reader's language, with per-IP limits and a kill switch.

v0.1.27

September 12, 2026

  • FeatureDesktop local tool bridge: The hosted API orchestrates a turn while file, data and code tools run on the user's device through a local helper; device artifacts are registered as metadata-only rows.
  • FeatureLocal helper: A small FastAPI helper (health, capabilities, allowed-folder file access, sandboxed code execution, storage stats) shipped with the desktop app, with a downloadable media pack for video, audio and speech.
  • FeatureMobile push: Device registration and push notifications when a turn finishes.
  • ImprovementClient header: Requests carry the client kind (web, desktop, iOS, Android) for policy and analytics.
  • FixArtifact extensions: Artifacts created without an extension get one from their type; updates resolve the normalized name.
  • FixReview fallback: A review turn that ended with only structured JSON now renders a readable review report.
  • FixAudio-only recordings: Mobile recordings without a video stream are treated as audio.

v0.1.26

September 11, 2026

  • FeatureLive answer streaming: Model text is sent as it is generated; retracted text is cancelled with a retract event.
  • FeatureAudio and video tools: Transcription, acoustic features, voice emotion, facial expression, pose and rPPG from uploaded media.
  • FeatureEEG suite: Info, preprocessing, band power, topomap, ERP, ERD/ERS and SSVEP tools.
  • FeatureStatistical test selection: Assumption-driven choice between parametric and non-parametric tests with effect sizes and post-hoc tests.
  • FeatureGoogle Drive connector (MCP): Built-in server, per-tool allow/ask/block policy, in-turn approvals, encrypted credentials, file picker routes.
  • FeatureStorage governance: Per-plan storage quotas, a daily garbage-collection job and orphan cleanup.
  • ImprovementSkill prompts in English: All 17 SKILL.md files and tool descriptions unified in English; answers still follow the user's language.
  • ImprovementSlash aliases: Any top-level skill key works as a slash command.
  • FixStructured outputs: Structured JSON is produced only for the skills actually engaged in the turn.

v0.1.25

September 10, 2026

  • FeatureManuscript schema and export: Claim–evidence map, structured references, citation styles (APA, Vancouver and more), DOCX / LaTeX / styled Markdown export.
  • ImprovementWriting turns own their artifacts: /write delivers the manuscript and companion figures; gap searches happen in the writing turn without extra reports.
  • ImprovementEffort levels for writing: Lite / Basic / Deep stages with measured credit and quality differences.
  • FeatureWriteBench: A pilot benchmark for paper writing with headless seeding of research state.
  • FixDuplicate artifact events: The artifact summary no longer lists the same artifact twice after an in-place revision.
  • FixDesign figure consistency: Power curve, expected results and protocol flow are checked against the design report before saving.

v0.1.24

September 09, 2026

  • ImprovementArtifact language: Artifacts follow the request language more reliably.

v0.1.23

September 08, 2026

  • ImprovementIllustration skill: Quality tuning.
  • ImprovementPlan rename: The first paid plan is now "Lite" (was "Light").

v0.1.22

September 07, 2026

  • ImprovementIllustration skill: Quality tuning.

v0.1.21

September 05, 2026

  • ImprovementContext compression: Smaller tool observations sent to the model with less re-reading.

v0.1.20

September 04, 2026

  • FeatureScientific figure pipeline: Diagrams and charts are generated as vector figures from a Figure DSL; research and design figures moved from mermaid/PNG to editable SVG.
  • FeatureFigure editor API: Semantic operations and natural-language revisions on figures, saved as in-place revisions.
  • ImprovementFigure-only turns: Skip the reviewer when a turn only produced figures.
  • FixStray reports: "Draw a figure" no longer produces an extra report.md.
  • FixTruncated titles: Session titles are no longer cut off by thinking tokens.

v0.1.19

September 03, 2026

  • FeatureEffort levels: Lite / Basic / Deep policies control search caps, sub-agents, report length, review repair and step limits.
  • FeatureDaily allowance: Per-plan daily token caps with monthly grants.
  • FeatureContext compression layer: Type-aware reduction of tool results, logs, files and search results before they reach the model.
  • FeatureModel catalog 2026-09: Updated vendor models, prices and routing tiers.
  • ImprovementArtifacts readable by tools: read_file and list_files see figure, report and table artifacts.
  • FixSchema check: Trigger functions are skipped correctly.

v0.1.18

September 01, 2026

  • FeatureStructured artifacts: Analysis reports, hypothesis sets, manuscripts and review reports are editable and re-renderable.
  • FeatureHuman-in-the-loop approvals: Risky code (deletions, overwrites, participant exclusion, external transfer) pauses for approval.
  • FeatureR runtime: code_exec can run R scripts in the same sandbox.
  • FeaturePatent claim extraction: Claims parsed into structure from Google Patents pages.
  • FeatureIn-app plan change: Change plans without a second checkout; Paddle ↔ Supabase reconciliation and idempotent webhooks.
  • ImprovementStructured tool errors: Failures carry a code, retryability and a recovery hint.
  • FixBilling hardening: Fixed the subscription-activation failure from the 2026-09-01 incident.

v0.1.17

August 31, 2026

  • FeaturePydantic AI runtime: The agent loop's model calls, tool dispatch and streaming run on pydantic-ai while the scientific harness stays in-house.
  • FeaturePersistent kernel: One Python process per session keeps variables and DataFrames between code_exec calls.
  • FeatureScientific toolset: 13 deterministic tools (statistics, psychometrics, biosignals) added.
  • FeatureSub-agents and context management: Delegation to child agents and tiered compaction of long histories.
  • FeatureDurable execution: Turns are checkpointed at step boundaries and resumed after interruptions.
  • FeatureProvenance graph: Source → claim → artifact lineage derived from session records.
  • Feature/compact: User-triggered conversation compaction.
  • FeatureStudy workflow, quick fact, policy skills: /study, /fact, and the analysis/statistics/hypothesis/writing/review policy skills.

v0.1.15

August 27, 2026

  • FeatureBenchmark infrastructure: Run policies, headless execution, trajectory records, SimpleQA adapter and deployment canary.
  • FeatureAdmin trajectory view: Audited admin access to session trajectories.
  • FixEmpty report sections: Section synthesis retries when a model call returns no text.
  • FixBenchmark reports: Short benchmark answers no longer trigger report synthesis.

v0.1.14

August 26, 2026

  • ImprovementResearch artifacts: Better research output structure.

v0.1.13

August 25, 2026

  • ImprovementChat titles: Titles summarize the conversation.
  • ImprovementResearch Markdown: Research artifacts in Markdown with restored highlights.

v0.1.12

August 24, 2026

  • FeatureAdmin dashboard API: Data for the admin dashboard; user metadata applied to chats.

v0.1.11

August 23, 2026

  • FeaturePaper table and ranking: Literature searches produce a screening table ranked by citation score, journal score and similarity.
  • FeatureResend email: Sign-up and subscription emails.
  • ImprovementBackground review: Reviews run in the background.
  • FixDesign reports: Reference annotations and sample-size consistency with the power curve.

v0.1.10

August 21, 2026

  • FeatureExperiment design report: A fixed-structure design report with one clarifying round; figures → reference designs → report.
  • ImprovementContext-aware routing: The skill router uses conversation context, not just the latest prompt.
  • ImprovementMarkdown research reports: Reports switch from HTML pages to Markdown.
  • ImprovementTerminology: "Emotion engineering" enforced as the English term.

v0.1.9

August 20, 2026

  • FeatureServer-side allowance: Metered turns are gated by the caller's wallet.
  • ImprovementDesktop CORS: Bundled desktop app origins allowed.

v0.1.8

August 19, 2026

  • FeaturePaddle billing: Checkout connected; pricing and token policies revised.

v0.1.7

August 18, 2026

  • ImprovementResearch skills: Search and report quality.

v0.1.6

August 14, 2026

  • FeatureProject memory: Chats in a project share context; artifacts from sibling chats are readable.
  • FeatureGemini 3.x: Catalog update with forced tool-call mode for models that write tool calls as text.
  • ImprovementArtifacts created box: Per-turn description of what was produced, with one-line artifact descriptions.
  • FixSource cap: The current turn's sources are no longer pushed out by the 60-source report cap.
  • FixGemini function calls: Restored the thought signature Gemini 3.x requires.

v0.1.5

August 12, 2026

  • ImprovementResearch skills: Search and report quality.

v0.1.4

August 11, 2026

  • ImprovementResearch skills: Search and report quality.

v0.1.2

August 06, 2026

  • FeatureResearch tracks: Paper, patent and web tracks composed by the research umbrella; search_patents tool.
  • FeatureDetached turns: Turns keep running after the connection drops; credits are charged server-side.
  • ImprovementVenue filter: Chosen venues are a hard filter on paper searches.

v0.1.1

August 05, 2026

  • ImprovementResearch skill: First round of improvements.

v0.1.0

July 28, 2026

  • FeatureNeutropic 2.0: Initial draft of the agent and API.