# Send Kernel to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "kernel",
    "name": "Kernel",
    "source": "tencent",
    "type": "skill",
    "category": "AI 智能",
    "sourceUrl": "https://clawhub.ai/ivangdavila/kernel",
    "canonicalUrl": "https://clawhub.ai/ivangdavila/kernel",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/kernel",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=kernel",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "SKILL.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-30T16:55:25.780Z",
      "expiresAt": "2026-05-07T16:55:25.780Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=network",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=network",
        "contentDisposition": "attachment; filename=\"network-1.0.0.zip\"",
        "redirectLocation": null,
        "bodySnippet": null
      },
      "scope": "source",
      "summary": "Source download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this source.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/kernel"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/kernel",
    "downloadUrl": "https://openagent3.xyz/downloads/kernel",
    "agentUrl": "https://openagent3.xyz/skills/kernel/agent",
    "manifestUrl": "https://openagent3.xyz/skills/kernel/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/kernel/agent.md"
  }
}
```
## Documentation

### Atomic Context Traps

spin_lock held = cannot sleep — no kmalloc(GFP_KERNEL), no mutex_lock, no copy_from_user
Interrupt can take same spinlock — must use spin_lock_irqsave, not plain spin_lock
rcu_read_lock() section cannot sleep — no blocking calls inside RCU read-side
might_sleep() annotation — add to functions that may sleep, catches bugs with CONFIG_DEBUG_ATOMIC_SLEEP

### Allocation Failures

GFP_ATOMIC can return NULL — always check, don't assume success
vmalloc memory not physically contiguous — cannot use for DMA
kzalloc over kmalloc — uninitialized memory leaks kernel info to userspace
Allocation in loop risks OOM — preallocate or use memory pool

### User Pointer Handling

copy_from_user returns bytes NOT copied — 0 means success, not failure
Never use %s with user pointer in printk — kernel crash or info leak
User memory can change during syscall — copy to kernel buffer, validate the copy
__user annotation is documentation — doesn't enforce anything, you must use copy functions

### Memory Ordering

READ_ONCE/WRITE_ONCE for lockless shared data — prevents compiler from caching/reordering
Spinlock release has implicit barrier — but check-then-act patterns still need care
smp_wmb() before publishing pointer — ensures data visible before pointer is

### Module Error Paths

Init fails midway — must undo everything already done
Reverse order cleanup — unregister in opposite order of register
goto err_* pattern standard — cleaner than nested ifs
Check what's actually initialized — don't free/unregister what wasn't set up

### Locking Mistakes

Same lock acquired twice = deadlock — even in different functions
Inconsistent lock ordering — document order, acquire in same sequence everywhere
mutex_trylock returns 1 on success — opposite of pthread_mutex_trylock
Reader-writer locks rarely worth it — contention overhead usually exceeds benefit
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: ivangdavila
- Version: 1.0.0
## Source health
- Status: healthy
- Source download looks usable.
- Yavira can redirect you to the upstream package for this source.
- Health scope: source
- Reason: direct_download_ok
- Checked at: 2026-04-30T16:55:25.780Z
- Expires at: 2026-05-07T16:55:25.780Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/kernel)
- [Send to Agent page](https://openagent3.xyz/skills/kernel/agent)
- [JSON manifest](https://openagent3.xyz/skills/kernel/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/kernel/agent.md)
- [Download page](https://openagent3.xyz/downloads/kernel)