Plugin runtime reach calculator

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Pick the agent runtime your plugin supports today and the calculator ranks the runtimes other plugins in the HOL catalog add next, with the count and share behind each one. Of the 710 plugins that declare Claude Code, 367 (51.7%) also declare Codex, the most common next runtime. The figures come from 1,169 packaged plugins across 16 runtimes.

Calculator

Your plugin runs in

Add Codex next. 367 of the 710 Claude Code plugins (51.7%) already declare it.

  1. 1Codex367 plugins · 51.7%
  2. 2Cursor184 plugins · 25.9%
  3. 3Antigravity CLI150 plugins · 21.1%
  4. 4OpenCode48 plugins · 6.8%
  5. 5Grok46 plugins · 6.5%
  6. 6Kimi Code31 plugins · 4.4%
  7. 7Copilot24 plugins · 3.4%
  8. 8OpenClaw11 plugins · 1.5%

Maintain a Claude Code plugin? The plugin converter writes the Codex and Gemini CLI manifests from the files you already have.

Runtime overlap network10 runtimes drawn as circles sized by plugin count, joined by lines as wide as the number of plugins that declare both. Lines from Claude Code are highlighted.DeepSeek Harness and Kimi Code: 1 pluginsAntigravity CLI and DeepSeek Harness: 1 pluginsGrok and DeepSeek Harness: 1 pluginsGrok and OpenClaw: 1 pluginsKimi Code and OpenClaw: 1 pluginsCodex and DeepSeek Harness: 3 pluginsCursor and DeepSeek Harness: 3 pluginsKimi Code and Copilot: 4 pluginsOpenCode and DeepSeek Harness: 4 pluginsCursor and OpenClaw: 5 pluginsAntigravity CLI and OpenClaw: 6 pluginsCodex and OpenClaw: 7 pluginsGrok and Copilot: 7 pluginsOpenCode and Kimi Code: 7 pluginsAntigravity CLI and Copilot: 9 pluginsGrok and Kimi Code: 9 pluginsOpenCode and Grok: 9 pluginsCodex and Copilot: 10 pluginsOpenCode and Copilot: 10 pluginsCursor and Copilot: 13 pluginsAntigravity CLI and Kimi Code: 15 pluginsAntigravity CLI and OpenCode: 18 pluginsAntigravity CLI and Grok: 20 pluginsCursor and Kimi Code: 21 pluginsCodex and Kimi Code: 23 pluginsCursor and OpenCode: 25 pluginsCodex and OpenCode: 28 pluginsCodex and Grok: 32 pluginsCursor and Grok: 36 pluginsCursor and Antigravity CLI: 90 pluginsCodex and Antigravity CLI: 102 pluginsCodex and Cursor: 124 pluginsClaude Code and DeepSeek Harness: 6 pluginsClaude Code and OpenClaw: 11 pluginsClaude Code and Copilot: 24 pluginsClaude Code and Kimi Code: 31 pluginsClaude Code and Grok: 46 pluginsClaude Code and OpenCode: 48 pluginsClaude Code and Antigravity CLI: 150 pluginsClaude Code and Cursor: 184 pluginsClaude Code and Codex: 367 pluginsClaude Code: 710 pluginsClaude CodeCodex: 552 pluginsCodexCursor: 216 pluginsCursorAntigravity CLI: 183 pluginsAntigravity CLIOpenCode: 95 pluginsOpenCodeGrok: 61 pluginsGrokDeepSeek Harness: 40 pluginsDeepSeek HarnessKimi Code: 33 pluginsKimi CodeCopilot: 25 pluginsCopilotOpenClaw: 16 pluginsOpenClaw
Circle area follows each runtime’s plugin count; line width follows the plugins two runtimes share. Hover a circle or line for its count.

The next runtime for every runtime

For each of the 10 runtimes with at least 10 plugins, the runtime its plugins declare most often alongside it, and the one after that.

The most common and second most common runtime declared alongside each runtime, with plugin counts and shares.
Your runtimePluginsMost common nextIn bothRunner-up
Claude Code710Codex367 (51.7%)Cursor, 184 (25.9%)
Codex552Claude Code367 (66.5%)Cursor, 124 (22.5%)
Cursor216Claude Code184 (85.2%)Codex, 124 (57.4%)
Antigravity CLI183Claude Code150 (82%)Codex, 102 (55.7%)
OpenCode95Claude Code48 (50.5%)Codex, 28 (29.5%)
Grok61Claude Code46 (75.4%)Cursor, 36 (59%)
DeepSeek Harness40Claude Code6 (15%)OpenCode, 4 (10%)
Kimi Code33Claude Code31 (93.9%)Codex, 23 (69.7%)
Copilot25Claude Code24 (96%)Cursor, 13 (52%)
OpenClaw16Claude Code11 (68.8%)Codex, 7 (43.8%)

How the calculator counts

  • It reads the same catalog snapshot as the runtime compatibility map: 1,169 packaged plugins, read on .
  • For the runtime you pick, every other runtime is ranked by how many plugins declare both. The share is that count divided by the plugins that declare your runtime.
  • Each figure stands for one pair. A plugin that declares three runtimes counts in three pairs, so shares never add up to a total and the calculator does not try.
  • These are declarations, not install tests. They show where plugin authors aim, not where every plugin has been run.
  • Only runtimes with at least 10 plugins can be picked as a starting point or appear in the graph.

Questions about runtime reach

Which runtime should a Claude Code plugin support next?

Of the 710 plugins that declare Claude Code, 367 (51.7%) also declare Codex, the most common next runtime. Cursor is next, at 184 plugins (25.9%).

Which runtime should a Codex plugin support next?

Of the 552 plugins that declare Codex, 367 (66.5%) also declare Claude Code, the most common next runtime. Cursor is next, at 124 plugins (22.5%).

Which runtime should a Cursor plugin support next?

Of the 216 plugins that declare Cursor, 184 (85.2%) also declare Claude Code, the most common next runtime. Codex is next, at 124 plugins (57.4%).

What does the share mean?

It is the part of the starting runtime’s plugins that also declare the other runtime. A high share means plugin authors who ship to your runtime usually ship there too, so users of that runtime expect to find plugins like yours.

Can I add the shares for two runtimes together?

No. A plugin can declare three or more runtimes, so the same plugin can sit in two pairs. The calculator reports each pair on its own and never adds pairs into a total.

Does a declared runtime mean the plugin was tested there?

No. The counts come from what each listing declares. HOL does not install every plugin in every runtime it names, so treat the figures as where authors aim their plugins, not as install results.

Ship to the next runtime