bookmark.add

bookmark.add is a skill for Claude Code from gpsaggese/helpers. It costs 15 tokens per session (530 once invoked), scanned A, original, Apache-2.0.

A research-link organiser that finds the most relevant idea or blog file for each link and adds a TODO reminder there.

In plain words
What is it for?
Use it to connect papers, articles, or other links with files under research ideas and website blog posts.
Why use it?
It prevents useful links from being lost and avoids attaching them to an unrelated document when no good match exists.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit Use it to connect papers, articles, or other links with files under research ideas and website blog posts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gpsaggese/helpers/bookmark.add
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.

Any agent
npx skills add gpsaggese/helpers --skill bookmark.add
Clone the repo
git clone --depth 1 https://github.com/gpsaggese/helpers

Made for: Claude Code.

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 bookmark.add

README.md
[![agentmods](https://agentmods.dev/badge/skills/gpsaggese/helpers/bookmark.add/github.svg)](https://agentmods.dev/skills/gpsaggese/helpers/bookmark.add)
Your own site
<a href="https://agentmods.dev/skills/gpsaggese/helpers/bookmark.add"><img src="https://agentmods.dev/badge/skills/gpsaggese/helpers/bookmark.add/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for bookmark.add

Your own site · 80×15
<a href="https://agentmods.dev/skills/gpsaggese/helpers/bookmark.add"><img src="https://agentmods.dev/badge/skills/gpsaggese/helpers/bookmark.add.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 530 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00015 $0.00530
Opus 5.5 $0.00006 $0.00212
Sonnet 5.5 $0.00003 $0.00106
Haiku 4.5 $0.00002 $0.00053

Measured yesterday against content hash 06c1a45a6068, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

bookmark.add 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 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.

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.

.claude/skills/bookmark.add/SKILL.md · 54 lines

What it actually says

Goal

  • Given one or more links <LINKS>, find the file(s) among the following that are related to each link, and add a TODO to the most related file:
    • research/ideas/*.md
    • website/docs/blog/posts/*.md
    // TODO(gp): incorporate the link <LINK> to <TOPIC>
    

Workflow

Collect Material

  • Read the title and content of each link in <LINKS> (use WebFetch if the URL alone is not descriptive enough to judge the topic)
  • List all candidate files in the two dirs above
  • For each link, compare its topic with each candidate's title, headers, and first paragraph. Rank candidates by relevance
  • Pick the single best match for each link
    • If several files are close, list them and ask the user which to use
    • If no file plausibly matches, do not force a match. Report it instead

Add the TODO

  • In the matched file, add one line:
    // TODO(gp): incorporate the link <LINK> to <TOPIC>
    
    where <TOPIC> is a short description (under 15 words) of the relevant part of the link, e.g., a technique, a result, or a quote
  • Placement:
    • If the file has a top-of-file // TODO(gp): ... block, add the new line as an adjacent line in that block
    • Otherwise, put it near the most related section, e.g., right above the relevant bullet point or paragraph
  • Change no other content in the file
  • If several links map to one file, add one TODO line per link

Report

  • For each link, print the file it was added to and the exact TODO line inserted
  • Report any unmatched link explicitly. Do not skip it silently

Verification

  • Each link matches at most one file, with no forced or guessed match
  • Each inserted line follows the exact // TODO(gp): incorporate the link <LINK> to <TOPIC> format
  • No content other than the new TODO line(s) changed in the matched file
  • The report lists every link with its target file or "not matched" status
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. yesterday First seen · 54 lines · 15 tokens per session scan A 06c1a45a6068

Subscribe to this mod's changes

bookmark.add is a skill published in the GitHub repository gpsaggese/helpers (158 stars, last pushed today), licensed Apache-2.0. It adds 15 tokens to every session and 530 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-11-06.

Related

bookmark.add compared with skills from other repositories

bookmark.add next to 6 skills from other repositories
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local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79ktodayMITA200Claude Code, Codex
playwright-climicrosoft/playwrightSkill99ktodayApache-2.0A19Claude Code
systematic-debuggingobra/superpowersSkill314k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code
chat-pet-sprite-creationmicrosoft/vscodeSkill195ktodayMITA53Claude Code, Codex