sift-mcp: Instructions file for Codex

AGENTS.md

sift-mcp AGENTS.md is an instructions file for Codex, OpenCode from AppliedIR/sift-mcp. It costs 2,528 tokens per session, scanned A, original, MIT.

Repository instructions for Valhuntir, a platform for digital forensic investigations. They explain its investigation method, connected services, available tools, and malware-analysis process.

In plain words
What is it for?
They are for starting investigations, finding available Linux and Windows forensic tools, recording findings and timelines, generating reports, and escalating malware analysis when needed.
Why use it?
They keep investigations grounded in evidence and help agents use the correct forensic service for each task.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions subagents.

This is AppliedIR/sift-mcp's own configuration. It tells Codex and OpenCode how to work on sift-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything sift-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to AppliedIR/sift-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/AppliedIR/sift-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/AppliedIR/sift-mcp

Made for: Codex, OpenCode.

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.

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README.md
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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.

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Per session 2,528 This file is loaded in full into every session.
When invoked 2,528 The same file — it is already loaded in full.
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 $0.02528 $0.02528
Opus 5.5 $0.01011 $0.01011
Sonnet 5.5 $0.00506 $0.00506
Haiku 4.5 $0.00253 $0.00253

Measured 6d ago against content hash 6fe8afdef622, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sift-mcp AGENTS.md 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.

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.

AGENTS.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Valhuntir — Forensic Investigation Platform

You are an IR analyst. Evidence guides theory, never the reverse.

Getting Started

Call forensic-mcp's get_investigation_framework tool for the full methodology framework including evidence standards, confidence levels, and checkpoint requirements.

Available MCP Servers

  • forensic-mcp — Investigation records (findings, timeline, TODOs), discipline methodology
  • case-mcp — Case lifecycle (init, activate, list, status), evidence management, export/import bundles, audit summary, action/reasoning logging
  • report-mcp — Report generation, case metadata, Zeltser IR Writing integration
  • sift-mcp — Linux forensic tool execution (SIFT workstation)
  • wintools-mcp — Windows forensic tool execution (Windows workstation)
  • forensic-rag-mcp — Forensic knowledge search (Sigma, MITRE, KAPE, etc.)
  • windows-triage-mcp — Windows baseline validation (offline)
  • threatintel-mcp — Threat intelligence: each platform's records (OpenCTI, MISP), not a verdict
  • remnux-mcp — Malware analysis (REMnux workstation, separate deployment, optional)

Call list_available_tools() on sift-mcp or list_windows_tools() on wintools-mcp to see current forensic tool inventory.

Before building a tool's command line, call get_tool_help (get_windows_tool_help on Windows) and use a recipe for the installed version, or the tool's own help. Exit codes differ by tool and version: judge a run from its output and the files it wrote.

Skills

Procedures load on demand as Agent Skills (a client without skills gets them from forensic-mcp's get_procedure):

  • vhir-ingest: the first steps after the evidence survey, and ingesting and querying evidence in OpenSearch
  • vhir-tool-reference: which tool to use, and the multi-step workflows
  • vhir-playbooks: the investigation playbooks
  • vhir-malware-escalation: when to send a file to REMnux
  • vhir-report-writing: the report, once findings are approved
  • finding-skeptic: challenge a drafted finding before recording it
  • vhir-welcome: post-install verification and onboarding

Read the full file on GitHub · 136 lines

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 Changed · +2 tokens per session 6fe8afdef622
  2. 11d ago Changed · +18 lines · +438 tokens per session e1a3df4d36c4
  3. 16d ago Changed · -39 lines · -230 tokens per session e6af13fc071c
  4. 1mo ago First seen · 157 lines · 2,318 tokens per session scan A b6e4f99f1844

Subscribe to this mod's changes

sift-mcp AGENTS.md is an instructions file published in the GitHub repository AppliedIR/sift-mcp (19 stars, last pushed 3d ago), licensed MIT. It adds 2,528 tokens to every session, about $0.0101 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 2026-08-30.

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