fic-research

fic-research is a skill for Claude Code, Codex from saski/arnesto. It costs 35 tokens per session (240 once invoked), scanned A, original, Unlicense.

A research procedure for documenting how a codebase currently works without suggesting changes.

In plain words
What is it for?
Use it to inspect named files, search related implementation and tests, record findings with file references, and save a current-state research report.
Why use it?
It creates an evidence-based picture of existing behavior, architecture, connections, and unresolved questions before planning or modifying the system.

Skill for Claude CodeCodex

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/saski/arnesto/fic-research
Any agent
npx skills add saski/arnesto --skill fic-research
Clone the repo
git clone --depth 1 https://github.com/saski/arnesto

Made for: Claude Code, Codex.

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 fic-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/saski/arnesto/fic-research.svg)](https://agentmods.dev/skills/saski/arnesto/fic-research)
Your own site
<a href="https://agentmods.dev/skills/saski/arnesto/fic-research"><img src="https://agentmods.dev/badge/skills/saski/arnesto/fic-research.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 240 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 $0.00035 $0.00240
Opus 5 $0.00017 $0.00120
Sonnet 5 $0.00007 $0.00048
Haiku 4.5 $0.00003 $0.00024

Measured 5d ago against content hash 0f9917a0f861, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

fic-research 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 5d 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/skills/fic-research/SKILL.md · 47 lines

What it actually says

FIC Research

Act as a senior engineer documenting what exists today.

Rules

  • Describe current state only.
  • Do not propose fixes, refactors, or recommendations.
  • Include concrete evidence with file references.

Workflow

  1. Read every file explicitly mentioned by the user.
  2. Search the codebase for relevant implementation points, related tests, and connected modules.
  3. Summarize findings by component:
    • What it does
    • Where it lives
    • How it connects to other components
  4. Record open questions that need follow-up investigation.

Output

When the repository has thoughts/, save to:

  • thoughts/shared/research/YYYY-MM-DD-topic.md

Recommended structure:

  • Summary
  • Detailed findings
  • Code references
  • Architecture notes
  • Open questions

Completion

End with:

  • Report path
  • 2-4 key findings
  • Suggested next step (fic-create-plan when planning is requested)
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. 5d ago First seen · 47 lines · 35 tokens per session scan A 0f9917a0f861

Subscribe to this mod's changes

fic-research is a skill published in the GitHub repository saski/arnesto (5 stars, last pushed 9d ago), licensed Unlicense. It adds 35 tokens to every session and 240 once invoked, about $0.0002 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 2026-08-31.

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