Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add netdata/skills --skill troubleshoot-kafkagit clone --depth 1 https://github.com/netdata/skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/netdata/skills/troubleshoot-kafka)<a href="https://agentmods.dev/skills/netdata/skills/troubleshoot-kafka"><img src="https://agentmods.dev/badge/skills/netdata/skills/troubleshoot-kafka/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/netdata/skills/troubleshoot-kafka"><img src="https://agentmods.dev/badge/skills/netdata/skills/troubleshoot-kafka.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00074 | $0.01856 |
| Opus 5.5 | $0.00030 | $0.00742 |
| Sonnet 5.5 | $0.00015 | $0.00371 |
| Haiku 4.5 | $0.00007 | $0.00186 |
Grade A, and why
troubleshoot-kafka scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Troubleshoot Kafka
When to use this skill
- "The ISR shrinks": A follower can't keep up (slow disk, network issue, GC pause). ISR shrinks
then if enough followers leave,
min.insync.replicas(default 1) can't be satisfied then producers withacks=allgetNotEnoughReplicasException. Most common degradation mode. - "The partition goes leaderless": Leader dies and no ISR member is available. If
unclean.leader.election.enable=false(default since Kafka 0.11.0.0), the partition is completely unavailable. If enabled, a behind follower takes over and data is silently lost. - "The consumer falls behind": Consumer lag grows because consumers are slow, rebalancing, or
dead. Eventually the consumer's offset points to data deleted by
retention then
OffsetOutOfRangeExceptionthen data loss from the consumer's perspective. - "The controller is overwhelmed": Too many partitions, broker joins/leaves, or ISR changes. The
controller's event queue backs up. Metadata propagation
stalls. Requests fail with
NOT_LEADER_FOR_PARTITION. - "The broker runs out of disk": Kafka shuts down the log directory. No graceful degradation. Partitions on that directory become unavailable.
- "The request queue fills up": Network threads accept requests faster than I/O threads process them. Queue fills, network threads block, clients time out and retry, adding more load (positive feedback loop).
- Any time the user reports a Kafka service behaving outside its expected envelope (elevated errors, latency, saturation, resource exhaustion, or unexpected restarts).
- An on-call engineer is paging on a Netdata alert tied to a Kafka instance and wants a structured triage path.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 155 lines · 74 tokens per session scan A a0c0f8dbf45c
troubleshoot-kafka is a skill published in the GitHub repository netdata/skills (2 stars, last pushed 29d ago), licensed Apache-2.0. It adds 74 tokens to every session and 1,856 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
troubleshoot-kafka compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| troubleshoot-kafkanetdata/skills | Skill | 2 | 29d ago | Apache-2.0 | A | 74 | Claude Code |
| api-integration-architectsickn33/agentic-awesome-skills | Skill | 49k | yesterday | MIT | A | 33 | Claude Code |
| printing-press-amendmvanhorn/cli-printing-press | Skill | 4.9k | yesterday | MIT | A | 222 | Claude Code |
| convex-performance-auditopenclaw/clawhub | Skill | 9.5k | yesterday | MIT | A | 38 | Codex |
| platform-apex-anonymous-runforcedotcom/sf-skills | Skill | 1.1k | 2d ago | Apache-2.0 | A | 119 | Claude Code |
| diagnose-backend-bugQoderAI/better-harness | Skill | 2.4k | 18d ago | MIT | A | 87 | Claude Code, Codex |
| tidewave-integrationoliver-kriska/claude-elixir-phoenix | Skill | 574 | yesterday | MIT | A | 38 | Claude Code |