Function computePluginBudget

plugins/plugin-eval/src/core/budget.js:126–227

(pluginRoot, manifest)

}

export async function computePluginBudget(pluginRoot, manifest) {
  const manifestPath = path.join(pluginRoot, ".codex-plugin", "plugin.json");
  const manifestContent = await readText(manifestPath);
  const skillDirs = manifest?.skills
    ? await discoverSkillDirs(pluginRoot, manifest.skills)
    : await discoverSkillDirs(pluginRoot, "./skills/");

  const triggerComponents = [
    createComponent(
      "plugin-description",
      manifestPath,
      estimateTokenCount(manifest?.description || ""),
      "Plugin marketplace summary",
    ),
    createComponent(
      "default-prompts",
      manifestPath,
      estimateTokenCount((manifest?.interface?.defaultPrompt || []).join("\n")),
      "Starter prompts visible in the UI",
    ),
  ];

  const invokeComponents = [
    createComponent("plugin-manifest", manifestPath, estimateTokenCount(manifestContent), "Manifest load cost"),
  ];
  const explicitOnlyComponents = [];
  const implicitSkills = [];
  const explicitOnlySkills = [];

  for (const skillDir of skillDirs) {
    const skillPath = path.join(skillDir, "SKILL.md");
    if (!(await pathExists(skillPath))) {
      continue;
    }
    const content = await readText(skillPath);
    const parsed = parseFrontmatter(content);
    const skillName = path.basename(skillDir);
    const invocationPolicy = await readInvocationPolicy(skillDir);

    if (invocationPolicy.allowImplicitInvocation) {
      implicitSkills.push(skillName);
      triggerComponents.push(
        createComponent(
          `${skillName}-description`,
          skillPath,
          estimateTokenCount(parsed.data?.description || ""),
          "Skill trigger description exposed through the plugin",
        ),
      );
      invokeComponents.push(
        createComponent(
          `${skillName}-skill-file`,
          skillPath,
          estimateTokenCount(content),
          "Implicit skill invocation cost ceiling",
        ),
      );
    } else {