Meta-skill: how to pass skills/context to Claude sub-agents that start with fresh context, with documented SDK gotchas.
94
94%
Does it follow best practices?
Impact
96%
1.50xAverage score across 3 eval scenarios
Passed
No known issues
{
"context": "Tests whether the agent knows plugin-specific gotchas: CLAUDE.md as the ONLY cross-agent ground truth channel, context:fork creates ISOLATED blank context (inverted semantics — GH #20492), skills must be passed explicitly, echo-skills validation handshake, and AskUserQuestion unavailability.",
"type": "weighted_checklist",
"checklist": [
{
"name": "CLAUDE.md as ground truth channel",
"description": "Configuration or context that must be available to all sub-agents is placed in CLAUDE.md — recognized as the ONLY cross-agent ground truth channel (not passed ad-hoc or assumed to be inherited)",
"max_score": 20
},
{
"name": "No context:fork misuse",
"description": "Code does NOT use context:'fork' expecting it to copy parent context — OR if context:fork appears, a comment explicitly notes its inverted semantics: fork creates ISOLATED blank context, not a copy (GH #20492)",
"max_score": 20
},
{
"name": "Skills passed explicitly per sub-agent",
"description": "Each sub-agent that needs skills has them passed explicitly (via AgentDefinition(skills=[...]) or inlined in prompt) rather than relying on implicit inheritance",
"max_score": 16
},
{
"name": "No AskUserQuestion in sub-agents",
"description": "Sub-agent prompts or designs do NOT include instructions or code that would cause the sub-agent to call AskUserQuestion — this tool is unavailable in sub-agents (GH #34592)",
"max_score": 14
},
{
"name": "Echo validation present",
"description": "At least one sub-agent has an echo-skills validation step (skills_echo JSON handshake) to confirm the skills handoff succeeded",
"max_score": 16
},
{
"name": "Cross-cutting vs per-agent distinction",
"description": "The solution distinguishes between context that goes in CLAUDE.md (cross-cutting ground truth) and context passed per sub-agent (skill-specific) — does not conflate the two channels",
"max_score": 14
}
]
}