resummarize

resummarize is a skill for Claude Code from Skyfox-io/Memex. It costs 50 tokens per session (1,180 once invoked), scanned A, original, MIT.

A tool for rewriting Memex workspace summaries into a newer format with numbered subjects, named entities, and facts stated by the user. Memex is a system that organises project knowledge in files.

In plain words
What is it for?
Use it to refresh a Memex manifest and hub summaries, especially when moving from the older summary format to version 2.
Why use it?
It updates old summaries so related information can be found more reliably after large changes.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Part of the memex plugin — 17 skills 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/skyfox-io/memex/resummarize
Any agent
npx skills add Skyfox-io/Memex --skill resummarize
Clone the repo
git clone --depth 1 https://github.com/Skyfox-io/Memex

Made for: Claude Code.

Or install memex, the plugin that ships this one along with the rest of its 17 skills.

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 resummarize

README.md
[![agentmods](https://agentmods.dev/badge/skills/skyfox-io/memex/resummarize.svg)](https://agentmods.dev/skills/skyfox-io/memex/resummarize)
Your own site
<a href="https://agentmods.dev/skills/skyfox-io/memex/resummarize"><img src="https://agentmods.dev/badge/skills/skyfox-io/memex/resummarize.svg" alt="Measured on agentmods" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,180 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 5.1 $0.00050 $0.01180
Opus 5 $0.00025 $0.00590
Sonnet 5 $0.00010 $0.00236
Haiku 4.5 $0.00005 $0.00118

Measured 6d ago against content hash be12d9b0c9d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

resummarize 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 6d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/verify-wikilinks.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.

memex/skills/resummarize/SKILL.md · 119 lines

How it starts

The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Memex - Resummarize

Wikilink rule: When referencing any file in markdown, always use [[filename]] wikilink format.

Refresh manifest and hub summaries to current retrieval-tuned format. The companion to /memex:reindex:

  • Resummarize. Rewrites summaries (manifest Hub Map rows, Tier 1 file rows, per-file rows inside each hub).
  • Reindex. Rebuilds the per-hub _CLOSETS.md typed-field index.

Run resummarize first on a v1→v2 migration, then reindex. They're independent passes.


Step 0: Detect workspace, acquire lock, detect format version

Run WORKSPACE_ROOT=$(pwd) && echo "$WORKSPACE_ROOT" via Bash. Read _MANIFEST.md:

  • No <!-- memex-managed marker: Tell the user to run /memex:init first and stop.

Acquire memory/.resummarize.lock and check the 24-hour cooldown in memory/.resummarize-runs.log. Both follow the shared bulk-write convention. See ../consolidate/references/locking.md.

Look for <!-- summary-format-version:N --> in the manifest:

  • Marker says 2 and --force not passed: ask "Manifest is already v2-format. Resummarize anyway? (y/n)". If no, exit and clear the lock.
  • Marker says 1 or absent: proceed.

Step 1: Identify files to resummarize

Three layers, processed in this order (highest leverage first):

  1. Tier 1 files in the manifest: [[CLAUDE]], [[status]], [[session-log]], [[decisions]], [[glossary]], [[ideas]], plus any other Tier 1 entries.
  2. Hub Map rows in the manifest: every [[*-index]] one-line domain summary.
  3. Hub interiors: every wikilinked entry inside each Tier 2 hub file.

Step 2: Read each file and write a v2 summary

For each file, read its current content and rewrite the summary using the eight v2 summary rules: ../session-end/references/summary-rules.md.

Highlights of the v2 contract (full rules in the reference):

  • Enumerate distinct subjects from anywhere in the file, not just opening lines.
  • Quote user-stated facts verbatim. Don't paraphrase.
  • Name entities by name.
  • Cap at 250 characters.
  • Capture decision reversals and date/time mentions explicitly.

Read the full file on GitHub · 119 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 · 119 lines · 50 tokens per session scan A be12d9b0c9d9

Subscribe to this mod's changes

resummarize is a skill published in the GitHub repository Skyfox-io/Memex (17 stars, last pushed 2mo ago), licensed MIT. It adds 50 tokens to every session and 1,180 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 2026-08-30.

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