index

index is a skill for Claude Code from myelixlabs/synapse-mcp. It costs 43 tokens per session (211 once invoked), scanned A, original, MIT.

A project-indexing skill that registers a code repository with Synapse and reports how far its indexing has progressed.

In plain words
What is it for?
Use it to add the current project or a specified path, check indexing status and learn when basic search is ready.
Why use it?
It prepares a project for Synapse's code search and relationship analysis without making you wait for all background processing to finish.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the synapse-mcp plugin — 8 skills shipped together

Good fit Use it to add the current project or a specified path, check indexing status and learn when basic search is ready.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/myelixlabs/synapse-mcp/index
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 myelixlabs/synapse-mcp --skill index
Clone the repo
git clone --depth 1 https://github.com/myelixlabs/synapse-mcp

Made for: Claude Code.

Or install synapse-mcp, the plugin that ships this one along with the rest of its 8 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 index

README.md
[![agentmods](https://agentmods.dev/badge/skills/myelixlabs/synapse-mcp/index/github.svg)](https://agentmods.dev/skills/myelixlabs/synapse-mcp/index)
Your own site
<a href="https://agentmods.dev/skills/myelixlabs/synapse-mcp/index"><img src="https://agentmods.dev/badge/skills/myelixlabs/synapse-mcp/index/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 index

Your own site · 80×15
<a href="https://agentmods.dev/skills/myelixlabs/synapse-mcp/index"><img src="https://agentmods.dev/badge/skills/myelixlabs/synapse-mcp/index.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 211 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 $0.00043 $0.00211
Opus 5.5 $0.00017 $0.00084
Sonnet 5.5 $0.00009 $0.00042
Haiku 4.5 $0.00004 $0.00021

Measured 7d ago against content hash fab1935d38ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

index 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 7d 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.

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-plugin/skills/index/SKILL.md · 15 lines

What it actually says

Index a project

The project to index is $ARGUMENTS if the user gave a path, otherwise the current project directory.

  1. Call synapse_manage_repos with action list. If the project is already registered, skip to step 3.
  2. Call synapse_manage_repos with action register and the project's root path. Use the repo_id exactly as the response gives it.
  3. Call synapse_indexer_control with action status and that repo_id. Report the phase and percentage.
  4. Tell the user what to expect: search works as soon as the first pass is ready, and semantic search improves while embeddings finish in the background. There is no need to wait.
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. 7d ago First seen · 15 lines · 43 tokens per session scan A fab1935d38ca

Subscribe to this mod's changes

index is a skill published in the GitHub repository myelixlabs/synapse-mcp (3 stars, last pushed 6d ago), licensed MIT. It adds 43 tokens to every session and 211 once invoked, about $0.0002 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 2026-09-30.

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