capture

capture is a skill for Claude Code, Codex from 7xuanlu/wenlan. It costs 44 tokens per session (1,418 once invoked), scanned B, original, Apache-2.0.

A command for saving a lasting note or preference to Wenlan, a persistent memory system for Codex. The note can be assigned to a named space.

In plain words
What is it for?
Use it to record a user preference, an important decision, or a durable fact that should be available in later work.
Why use it?
It prevents useful decisions, corrections, and preferences from being lost when the current conversation ends.

Skill for Claude CodeCodex

Written for Claude Code and Codex: allowed-tools in frontmatter, but also agents/openai.yaml present. Also seen: mentions AGENTS.md; mentions Codex.

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/7xuanlu/wenlan/capture
Any agent
npx skills add 7xuanlu/wenlan --skill capture
Clone the repo
git clone --depth 1 https://github.com/7xuanlu/wenlan

Made for: Claude Code, Codex.

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 capture

README.md
[![agentmods](https://agentmods.dev/badge/skills/7xuanlu/wenlan/capture.svg)](https://agentmods.dev/skills/7xuanlu/wenlan/capture)
Your own site
<a href="https://agentmods.dev/skills/7xuanlu/wenlan/capture"><img src="https://agentmods.dev/badge/skills/7xuanlu/wenlan/capture.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,418 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 5.1 $0.00044 $0.01418
Opus 5 $0.00022 $0.00709
Sonnet 5 $0.00009 $0.00284
Haiku 4.5 $0.00004 $0.00142

Measured 6d ago against content hash a9989bdb6f63, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade B, and why

capture scanned grade B 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 6d 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

resolver="$(find "$HOME/.codex/plugins/cache" -path '*/wenlan/*/bin/resolve-space.sh' 2>/dev/null | head -1)"
plugin-codex/skills/capture/SKILL.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/capture

Capture one memory in the moment. Write the memory as a self-contained statement with the reason it matters.

Argument parsing

Accept one optional inline token of the form space:<name> anywhere in the argument string. Extract it before treating the rest as content:

raw_args="<the full argument string passed to /capture>"
space_arg="$(printf '%s\n' "$raw_args" | grep -oE 'space:[A-Za-z0-9_-]+' | head -1 | cut -d: -f2)"
content="$(printf '%s\n' "$raw_args" | sed -E 's/[[:space:]]*space:[A-Za-z0-9_-]+[[:space:]]*/ /g' | sed -E 's/^[[:space:]]+|[[:space:]]+$//g')"

If content is empty, ask the user what they want to capture.

Resolve the active space

Call the Codex resolver:

# The resolver ships inside the installed plugin; the relative path only
# exists in a wenlan checkout.
resolver="$(find "$HOME/.codex/plugins/cache" -path '*/wenlan/*/bin/resolve-space.sh' 2>/dev/null | head -1)"
resolved="$("${resolver:-plugin-codex/bin/resolve-space.sh}" --cwd "$PWD" ${space_arg:+--arg "$space_arg"} 2>/dev/null)"
space="$(printf '%s\n' "$resolved" | cut -f1)"
source_layer="$(printf '%s\n' "$resolved" | cut -f2)"

If space is non-empty, print Resolved space: <space> (from <source-layer>) and pass it to the capture MCP tool. If space is empty, print Resolved space: none (unscoped) and omit the space parameter.

After capture, relay the tool's returned space, space_source, and write_outcome; those fields describe what the daemon actually persisted and are authoritative.

How to invoke

Call the Wenlan MCP capture tool with the user's content as a complete, self-contained statement. Attach topic from cwd or the conversation when useful.

capture(
  content="<content, written as a full sentence with WHY>",
  memory_type="<picked from the 6 types>",
  entity="<primary entity name, if any>",
  space="<resolved if non-empty>"
)

Pick memory_type

The daemon classifies when a model or API key is configured. In local memory mode it may not, so pick the type from the content itself.

Read the full file on GitHub · 146 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. 6d ago First seen · 146 lines · 44 tokens per session scan B a9989bdb6f63

Subscribe to this mod's changes

capture is a skill published in the GitHub repository 7xuanlu/wenlan (62 stars, last pushed today), licensed Apache-2.0. It adds 44 tokens to every session and 1,418 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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