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fix(task): only inherit edit-class denies from parent agent to subagent #26845

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fix(task): only inherit edit-class denies from parent agent to subagent #26845

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dc4a43b
fix(task): only inherit edit-class denies from parent agent to subagent
21pounder May 11, 2026
f295f02
Merge branch 'dev' into fix/subagent-deny-inheritance
21pounder May 11, 2026
bdd29cc
Merge branch 'dev' into fix/subagent-deny-inheritance
21pounder May 12, 2026
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9 changes: 8 additions & 1 deletion packages/opencode/src/agent/subagent-permissions.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,14 @@ export function deriveSubagentSessionPermission(input: {
}): Permission.Ruleset {
const canTask = input.subagent.permission.some((rule) => rule.permission === "task")
const canTodo = input.subagent.permission.some((rule) => rule.permission === "todowrite")
const parentAgentDenies = input.parentAgent?.permission.filter((rule) => rule.action === "deny") ?? []
// Only inherit edit-class denies from the parent agent (Plan Mode ceiling).
// Other parent denies describe what the parent itself cannot do and must not
// constrain the subagent's own explicit allowlist.
const EDIT_PERMISSIONS = ["edit", "write", "apply_patch"]
const parentAgentDenies =
input.parentAgent?.permission.filter(
(rule) => rule.action === "deny" && EDIT_PERMISSIONS.includes(rule.permission),
) ?? []
return [
...parentAgentDenies,
...input.parentSessionPermission.filter(
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