deep-research

deep-research is a skill for Claude Code, Codex from Threat-Vector-Security/guardian-agent. It costs 28 tokens per session (226 once invoked), scanned A, original, Apache-2.0.

An investigation guide for understanding code paths, tracing behaviour, comparing alternatives, and combining findings before implementation.

In plain words
What is it for?
Answering a specific technical question, inspecting relevant files and symbols, comparing old and new behaviour, and preparing a concise research brief.
Why use it?
It keeps research focused and separates confirmed facts from conclusions that still need verification.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Answering a specific technical question, inspecting relevant files and symbols, comparing old and new behaviour, and preparing a concise research brief.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/threat-vector-security/guardian-agent/deep-research
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 Threat-Vector-Security/guardian-agent --skill deep-research
Clone the repo
git clone --depth 1 https://github.com/Threat-Vector-Security/guardian-agent

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 deep-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/deep-research.svg)](https://agentmods.dev/skills/threat-vector-security/guardian-agent/deep-research)
Your own site
<a href="https://agentmods.dev/skills/threat-vector-security/guardian-agent/deep-research"><img src="https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/deep-research.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 226 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 $0.00028 $0.00226
Opus 5 $0.00014 $0.00113
Sonnet 5 $0.00006 $0.00045
Haiku 4.5 $0.00003 $0.00023

Measured 7d ago against content hash 9a43fa59f6d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

deep-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 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.

skills/deep-research/SKILL.md · 30 lines

What it actually says

Deep Research

Use this skill when the task needs investigation before implementation.

Workflow:

  1. Define the exact question being answered.
  2. Inspect the smallest relevant file and symbol set first.
  3. Compare competing code paths, old vs new behavior, or proposal vs implementation.
  4. Produce a concise synthesis: what is true, what is inferred, what is still unknown.

Guardrails:

  • Do not start editing until the research question is answered.
  • Keep notes compact and decision-oriented.
  • If the investigation branches, summarize each branch separately before merging conclusions.

Gotchas

  • Do not drift from investigation into implementation just because a likely fix becomes obvious.
  • Do not mix confirmed observations and inferred conclusions into one bullet list.
  • Do not read the whole repo when a narrow symbol/file comparison can answer the question.

Template

  • Use templates/research-brief.md when the findings need to be handed off or saved as a durable brief.
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 30 lines · 28 tokens per session scan A 9a43fa59f6d5

Subscribe to this mod's changes

deep-research is a skill published in the GitHub repository Threat-Vector-Security/guardian-agent (11 stars, last pushed yesterday), licensed Apache-2.0. It adds 28 tokens to every session and 226 once invoked, about $0.0001 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 2026-08-30.

Related

Other skills, from other repositories

continuum-observability

Trace agent runs with Langfuse, decorate functions with @observe, collect latency/token/error metrics, and report errors. Invoke when the user asks about "see what the LLM was prompted with", "Langfuse traces", "track latency", "metrics dashboard", "error reporting", or "instrument my function".

shyftlabs/continuum · 70 tokens

python-code-quality

Code quality checks, linting, formatting, and type checking commands for the Agent Framework Python codebase. Use this when running checks, fixing lint errors, or troubleshooting CI failures.

microsoft/agent-framework · 40 tokens

sonarqube

Operate SonarQube-enabled repositories through the SonarQube CLI (sonar): verify authentication, discover project keys, inspect project metadata, issues, measures, and quality gates, analyze changed code, scan secrets and dependency risks, call authenticated APIs, trigger remediation, configure integrations, and…

DougTrajano/pydantic-ai-skills · 143 tokens

performance-optimization

Measure-first performance work. Use on triggers like "it's slow", "profile this", "optimize perf", "fix the bottleneck", "improve load time / Core Web Vitals", or when a measured regression needs fixing. Enforces measure-before-optimize. Fills a perf gap not covered by existing project skills. Not a build/ship…

BlackBeltTechnology/pi-agent-dashboard · 77 tokens

node-inspect-debugger

See runtime state a console.log cannot reach — set real breakpoints, step, and dump the scope chain of a paused Node/TypeScript process. Use on "set a breakpoint", "inspect runtime state", "console.log isn't enough", "step through this", "what's in this closure at runtime", "attach a debugger". Not a logging or…

BlackBeltTechnology/pi-agent-dashboard · 83 tokens

systematic-debugging

Root-cause a bug already in front of you, instead of guessing at fixes. Use on triggers like "root cause this", "why is this failing", "debug systematically", "this test is flaky", "it works locally but not in CI", or when a fix attempt has already failed once. Enforces a phased evidence-first process before any code…

BlackBeltTechnology/pi-agent-dashboard · 86 tokens