oss-investigator-wayback-agent

oss-investigator-wayback-agent is an agent for Claude Code from gadievron/raptor. It costs 16 tokens per session (862 once invoked), scanned A, original, no licence file.

A tool for recovering deleted GitHub content through the Wayback Machine, an Internet archive that stores older versions of web pages.

In plain words
What is it for?
It helps search archived web pages for deleted GitHub content.
Why use it?
It can provide historical copies when content is no longer available on GitHub.

Agent for Claude Code

Written for Claude Code: hooks in frontmatter. Also seen: model in frontmatter.

Good fit It helps search archived web pages for deleted GitHub content.

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Install with agentmods
npx agentmods add agents/gadievron/raptor/oss-investigator-wayback-agent
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.

Clone the repo
git clone --depth 1 https://github.com/gadievron/raptor

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 oss-investigator-wayback-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/gadievron/raptor/oss-investigator-wayback-agent/github.svg)](https://agentmods.dev/agents/gadievron/raptor/oss-investigator-wayback-agent)
Your own site
<a href="https://agentmods.dev/agents/gadievron/raptor/oss-investigator-wayback-agent"><img src="https://agentmods.dev/badge/agents/gadievron/raptor/oss-investigator-wayback-agent/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 oss-investigator-wayback-agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/gadievron/raptor/oss-investigator-wayback-agent"><img src="https://agentmods.dev/badge/agents/gadievron/raptor/oss-investigator-wayback-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 862 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00016 $0.00862
Opus 5 $0.00008 $0.00431
Sonnet 5 $0.00003 $0.00172
Haiku 4.5 $0.00002 $0.00086

Measured 2d ago against content hash c7bf2830a055, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

oss-investigator-wayback-agent scanned grade A 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 2d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

**Network constraint:** The WebFetch tool is mechanically restricted to `web.archive.org` and `archive.org` over https (PreToolUse hook). Denied WebFetch calls are not retried — report the need to the orchestrator instea
.claude/agents/oss-investigator-wayback-agent.md · 90 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 2d ago Changed · +3 lines c7bf2830a055
  2. 13d ago First seen · 87 lines · 16 tokens per session scan A 86da0b57dd89

Subscribe to this mod's changes

oss-investigator-wayback-agent is an agent published in the GitHub repository gadievron/raptor (3,782 stars, last pushed today), with no licence file. It adds 16 tokens to every session and 862 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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