isolate

isolate is a skill for Claude Code, Codex from ph3on1x/wisci. It costs 61 tokens per session (975 once invoked), scanned A, original, MIT.

A research helper that delegates codebase exploration or external research to separate assistant sessions, then combines the findings and can save them as Markdown context.

In plain words
What is it for?
Use it to investigate a part of a codebase, compare technical approaches, research documentation or practices, and optionally preserve the results for future work.
Why use it?
Separate research sessions keep the main conversation focused and reduce repeated investigation in later sessions.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the wisci plugin — 5 skills, 2 hooks shipped together

Install

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.

agentmods
npx agentmods add skills/ph3on1x/wisci/isolate
Any agent
npx skills add ph3on1x/wisci --skill isolate
Clone the repo
git clone --depth 1 https://github.com/ph3on1x/wisci

Made for: Claude Code, Codex.

Or install wisci, the plugin that ships this one along with the rest of its 5 skills, 2 hooks.

Wrote 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.

agentmods badge for isolate

README.md
[![agentmods](https://agentmods.dev/badge/skills/ph3on1x/wisci/isolate.svg)](https://agentmods.dev/skills/ph3on1x/wisci/isolate)
Your own site
<a href="https://agentmods.dev/skills/ph3on1x/wisci/isolate"><img src="https://agentmods.dev/badge/skills/ph3on1x/wisci/isolate.svg" alt="Measured on agentmods" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 975 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00061 $0.00975
Opus 5 $0.00030 $0.00487
Sonnet 5 $0.00012 $0.00195
Haiku 4.5 $0.00006 $0.00097

Measured 3d ago against content hash 3e6b9ca298c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

isolate 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 3d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/wisci.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/isolate/SKILL.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/isolate — Subagent Research Delegator

Research happens in subagent context windows; only synthesized findings enter the main context. Durable findings are then persisted to the store so no future session repeats the work.

Store pre-flight

Existing store state: !python3 "${CLAUDE_PLUGIN_ROOT}/scripts/wisci.py" scan

If the scan shows an error or unexpanded variable, run the bundled script manually: scripts/wisci.py relative to this skill's directory.

Before spawning anything, check the scan for a .wisci/context/ file covering the research topic:

  • Fresh match: load it. Narrow the research to what it does not answer — or skip research entirely and present the stored knowledge.
  • Stale match: research anyway; in the synthesis, reconcile against the stored file ("what changed since this was written").
  • No match: research from scratch.

Execution Flow

  1. Parse task. Read $ARGUMENTS. Note override words: deep/thorough (wider sweep), save (force persist), nosave (inline only).

  2. Plan decomposition. Decide autonomously — no approval step. For each subtask pick the agent type:

    • Codebase questionssubagent_type: "Explore" (read-only)
    • External questions (library docs, best practices, comparisons) → subagent_type: "general-purpose" with instructions to use web search/fetch
    • Hybrid tasks mix both.

    Agent count: 1 for focused single-area research, 2-3 for natural splits, up to 5 only when $ARGUMENTS says deep/thorough. When multiple agents cover one topic, give each a distinct lens (code structure, git history, docs/web) rather than redundant copies of the same search.

  3. Spawn all agents in a single message (parallel). Each prompt contains: the specific investigation task, focus areas, and the required output shape — structured markdown with exact file paths, line numbers, function names, and error messages. Vague summaries are not acceptable subagent output.

  4. Collect and handle failures. An agent that returns nothing or dies: retry it once; still nothing → report the coverage gap explicitly in the synthesis. Never present partial coverage as complete.

Read the full file on GitHub · 70 lines

Files

What ships with it

1 file 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.

Changes

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.

  1. 3d ago First seen · 70 lines · 61 tokens per session scan A 3e6b9ca298c2

Subscribe to this mod's changes

isolate is a skill published in the GitHub repository ph3on1x/wisci (1 stars, last pushed 1mo ago), licensed MIT. It adds 61 tokens to every session and 975 once invoked, about $0.0003 per session on Opus 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.

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