RightNow AI is a YC-backed GPU research lab and software company. Its flagship product is RightNow Agent, the fastest coding agent harness in the world. It also builds the RightNow editor and Forge.

What is RightNow Agent?

RightNow Agent is the fastest coding agent harness in the world, a Rust terminal CLI built for one thing: speed. On the measured Windows path, a warm daemon opens a session in 105 to 115 ms.

Which NVIDIA GPUs does the RightNow editor support?

The RightNow editor supports all NVIDIA GPUs with CUDA Toolkit 11.0-12.5, including GeForce RTX 40/30/20 series, GTX 16/10 series, Quadro RTX, Tesla, A100, and H100.

How much does RightNow AI cost?

RightNow AI is free to use with unlimited profiling and benchmarking. RightNow Pro costs $20 per month and adds GPU emulator access (50+ GPUs), multi-GPU comparison, and 1,000 AI credits per month.

What CUDA development workflow does the RightNow editor support?

The RightNow editor supports CUDA development workflows that combine editing, profiling, emulation, remote GPU execution, and benchmarked performance analysis.

Can I use the RightNow editor on macOS?

Yes, the RightNow editor is available on macOS (Apple Silicon and Intel). Mac users can use remote GPUs for free or our built-in GPU emulator for CUDA profiling.

Project Rules

RightNow Agent loads Markdown instructions that describe a project's conventions, build commands, architecture, and safety constraints. Rules are added to the session context and apply throughout their directory tree.

Recognized files

Within each directory, RightNow checks these names in order and loads every matching file:

Agents.md	Claude.md	CLAUDE.md
CLAUDE.local.md	AGENT.md	AGENTS.md

On case-insensitive filesystems, names that resolve to the same file are deduplicated. Top-level Claude-compatible names remain recognized even when machine-wide Claude imports are disabled.

Load order and scope

User-level rules load first.
Inside a repository, rules load from the repository root down to the current working directory.
If the working directory is not in a repository, only its local project rules are scanned.
Rules in deeper directories appear later, so they win when instructions conflict.

text

my-repo/
  AGENTS.md
  src/
    AGENTS.md
    components/
      AGENTS.md

Starting in src/components loads all three files. The components rule has the final word on conflicts because it is deepest.

Session-only rules

Use --rules, also available as --append-system-prompt, to add temporary instructions without editing a file.

bash

.\rightnow.ps1 --rules "Always use TypeScript. Prefer functional components."

RightNow wraps this text in <human_rules> and appends it to the default system prompt. A system prompt override replaces the default prompt and skips appended rules instead.

The project extension directory

Prefer the canonical .rightnow/ project paths. RightNow reads them first and still honors existing .grok/ paths where the guide defines a fallback.

Preferred path	Legacy behavior
.rightnow/config.toml	Reads .grok/config.toml when the corresponding preferred file is absent.
.rightnow/skills/	Reads .grok/skills/ as a fallback.
.rightnow/plugins/	Reads .grok/plugins/ as a fallback.
.rightnow/hooks/	Reads .grok/hooks/ as a fallback.
.grok/rules/*.md	Remains an always-scanned project rules directory.

Shipped compatibility profile

The shipped profile sets machine-wide Claude and Cursor rule and agent imports to off. Native RightNow rules and recognized top-level project files such as CLAUDE.md still work.

Inspect what loaded

Use the inspect subcommand to list discovered project instructions with their paths and approximate token counts.

bash

rightnow-pager.exe inspect
rightnow-pager.exe inspect --json

Project Rules

Recognized files

Within each directory, RightNow checks these names in order and loads every matching file:

Agents.md	Claude.md	CLAUDE.md
CLAUDE.local.md	AGENT.md	AGENTS.md

On case-insensitive filesystems, names that resolve to the same file are deduplicated. Top-level Claude-compatible names remain recognized even when machine-wide Claude imports are disabled.

Load order and scope

User-level rules load first.
Inside a repository, rules load from the repository root down to the current working directory.
If the working directory is not in a repository, only its local project rules are scanned.
Rules in deeper directories appear later, so they win when instructions conflict.

text

my-repo/
  AGENTS.md
  src/
    AGENTS.md
    components/
      AGENTS.md

Starting in src/components loads all three files. The components rule has the final word on conflicts because it is deepest.

Session-only rules

Use --rules, also available as --append-system-prompt, to add temporary instructions without editing a file.

bash

.\rightnow.ps1 --rules "Always use TypeScript. Prefer functional components."

RightNow wraps this text in <human_rules> and appends it to the default system prompt. A system prompt override replaces the default prompt and skips appended rules instead.

The project extension directory

Prefer the canonical .rightnow/ project paths. RightNow reads them first and still honors existing .grok/ paths where the guide defines a fallback.

Preferred path	Legacy behavior
.rightnow/config.toml	Reads .grok/config.toml when the corresponding preferred file is absent.
.rightnow/skills/	Reads .grok/skills/ as a fallback.
.rightnow/plugins/	Reads .grok/plugins/ as a fallback.
.rightnow/hooks/	Reads .grok/hooks/ as a fallback.
.grok/rules/*.md	Remains an always-scanned project rules directory.

Shipped compatibility profile

The shipped profile sets machine-wide Claude and Cursor rule and agent imports to off. Native RightNow rules and recognized top-level project files such as CLAUDE.md still work.

Inspect what loaded

Use the inspect subcommand to list discovered project instructions with their paths and approximate token counts.

bash

rightnow-pager.exe inspect
rightnow-pager.exe inspect --json