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Private sieve subskill. Invoked by the sieve controller once per prime; not user-invocable. Strikes the multiples of a single prime p out of the sieve and records them in sieve.state.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Use when the user says "netwatch" or asks to measure network stats (ping latency, packet loss, interface throughput) in the background. Launches a background subagent via the `task` tool that runs ~20s of measurements, then returns control immediately so the user can keep talking. Demonstrates background subagent invocation in opencode.
Private sieve subskill. Invoked by the sieve controller after each pass; not user-invocable. Reads sieve.state and draws the current grid — remaining primes vs. struck (composite) numbers.
Demonstrates cyclic skill invocation — runs the Sieve of Eratosthenes by invoking a private "strike" subskill once per prime, re-rendering a visual grid after each pass. Takes an upper limit n. Use to show one skill invoking another skill N times in a loop.
Use when the user says "syscheck" or asks for a parallel system health check. Fans out THREE subagents at once via the Agent tool — one checks CPU, one network, one memory — using only safe read-only commands, then synthesizes their results into one report. Demonstrates parallel subagent fan-out in Claude Code.
Use when the user says "syscheck" or asks for a parallel system health check. Fans out THREE subagents via the `task` tool — one checks CPU, one network, one memory — using only safe read-only commands, then synthesizes their results into one report. Demonstrates parallel subagent fan-out in opencode.
Demonstrates recursive self-invocation with a depth limit. Performs a breadth-first (level-order) traversal of the decision tree in tree.json by invoking ITSELF once per level — each call expands the current frontier and recurses on the next, stopping at a maximum depth. Takes an optional max depth.
| name | sieve-strike |
| description | Private sieve subskill. Invoked by the sieve controller once per prime; not user-invocable. Strikes the multiples of a single prime p out of the sieve and records them in sieve.state. |
| user-invocable | false |
| argument-hint | [p] |
You are a private subskill (user-invocable: false), invoked by the sieve
controller with one number as your argument ($ARGUMENTS): the prime p whose
multiples you must strike. The controller calls you once per prime — you do a
single pass and return.
Do exactly this:
Let p = $ARGUMENTS. Read sieve.state and take n from its n=<n> header.
Compute the multiples of p to strike, starting at p*p:
p², p²+p, p²+2p, … up to and including n.
(Starting at p² is the classic optimization — smaller multiples of p were
already struck by smaller primes.)
Append one line to sieve.state (do not overwrite earlier lines):
strike p=<p> -> <m1> <m2> <m3> ...
If there are no multiples ≤ n, still append the line with an empty list.
Tell the user, in one line: Struck multiples of <p>: <m1> <m2> ...
Do not render the grid and do not pick the next prime — the controller
handles the loop and calls sieve-render. Do one strike pass, then stop.