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 agentmods add skills/foru17/neko-master/agent-probe-devnpx skills add foru17/neko-master --skill agent-probe-devgit clone --depth 1 https://github.com/foru17/neko-masterWhat 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 | $0.00055 | $0.00739 |
| Opus 5 | $0.00028 | $0.00369 |
| Sonnet 5 | $0.00011 | $0.00148 |
| Haiku 4.5 | $0.00006 | $0.00074 |
Grade A, and why
agent-probe-dev scanned grade A with 1 finding 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 yesterday.
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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- `install.sh` — curl-pipe installer How it starts
The opening of the file, as written. The whole thing — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Probe Development (apps/agent)
The agent is a Go binary deployed on routers/servers. It polls the local gateway (mihomo/Surge) and reports to the collector over HTTP (gzip JSON POST to /api/agent/report|heartbeat|config|policy-state) — not WebSocket.
Layout
main.go— entrypoint, flag parsinginternal/agent/runner.go— main loop: report/heartbeat/config-sync tickers, pending queue, retry batchinternal/gateway/— mihomo & Surge API clientsinternal/config/config.go— flags,AgentProtocolVersionnekoagent— POSIX-sh service manager wrapper (install/upgrade/systemd/procd/launchd)install.sh— curl-pipe installer
Verify
cd apps/agent
go vet ./... && go build ./... && go test ./...
sh -n nekoagent && sh -n install.sh # shell syntax gate — both scripts must parse with POSIX sh
Hard rules
- Protocol versioning. Payload shape changes require bumping
AgentProtocolVersion(Go) AND the collector's minimum accepted version (agent auth inapps/collector/src/modules/app/app.ts); the collector rejects too-old agents with HTTP 426 + structured error. The Go structs and the collector's TS payload types are mirrored by hand — change both sides in one commit. - Data-loss protections are contracts: single in-flight retry batch,
requestIdidempotency dedup, counter-regression handling (gateway restart counts current value as new traffic), bounded pending queue withdroppedaccounting. Don't weaken these when refactoring the loop. - Router constraints. Target environments include OpenWrt/BusyBox:
nekoagentmust stay POSIX sh (no bashisms),/tmpis tmpfs (RAM) — clean up temp dirs (accumulate EXIT traps, don't overwrite them), and network calls in shell must carry timeouts + retries (curl --connect-timeout 10 --max-time 120 --retry 3). - Self-replacement. Never overwrite a running script/binary in place — download to a sibling
.tmp/.newpath andmv(same-filesystem rename) so the running inode survives. - Service management. systemd unit:
StartLimitIntervalSec/Burstbelong in[Unit], not[Service]. procd (OpenWrt) respawn has a finite retry budget — treat "cannot start" as exit non-zero so supervisors behave correctly.
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.
- yesterday First seen · 40 lines · 55 tokens per session scan A b89db036c1fb
agent-probe-dev is a skill published in the GitHub repository foru17/neko-master (3,849 stars, last pushed 29d ago), licensed MIT. It adds 55 tokens to every session and 739 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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