parallel-deep-research

parallel-deep-research is a skill for Claude Code, Codex from parallel-web/parallel-agent-skills. It costs 76 tokens per session (1,502 once invoked), scanned A, original, MIT.

A service for carrying out detailed, multi-step research and returning a report. It is intended for requests that explicitly require exhaustive or comprehensive investigation.

In plain words
What is it for?
Use it for thorough investigations, comprehensive reports, and other explicitly requested deep-research tasks.
Why use it?
It addresses research tasks that need more depth than a quick web lookup, while making the resulting findings available as a report with citations.

Skill for Claude CodeCodex

Part of the parallel-agent-skills plugin — 11 skills, 1 agent shipped together

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/parallel-web/parallel-agent-skills/parallel-deep-research
Any agent
npx skills add parallel-web/parallel-agent-skills --skill parallel-deep-research
Clone the repo
git clone --depth 1 https://github.com/parallel-web/parallel-agent-skills

Made for: Claude Code, Codex.

Or install parallel-agent-skills, the plugin that ships this one along with the rest of its 11 skills, 1 agent.

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 parallel-deep-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/parallel-web/parallel-agent-skills/parallel-deep-research.svg)](https://agentmods.dev/skills/parallel-web/parallel-agent-skills/parallel-deep-research)
Your own site
<a href="https://agentmods.dev/skills/parallel-web/parallel-agent-skills/parallel-deep-research"><img src="https://agentmods.dev/badge/skills/parallel-web/parallel-agent-skills/parallel-deep-research.svg" alt="Measured on agentmods" height="20"></a>
Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,502 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 $0.00076 $0.01502
Opus 5 $0.00038 $0.00751
Sonnet 5 $0.00015 $0.00300
Haiku 4.5 $0.00008 $0.00150

Measured 4d ago against content hash acbe1bd92527, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

parallel-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 4d 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/parallel-deep-research/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deep Research

Research topic: $ARGUMENTS

Requires parallel-cli ≥ 0.3.0. If any command below errors with no such option, no such command, or unrecognized arguments, the user is on an older CLI. Tell them to run parallel-cli update (or pipx upgrade parallel-web-tools if installed via pipx), then retry.

ONLY use this skill when the user explicitly requests deep/exhaustive research. Deep research is 10-100x slower and more expensive than parallel-web-search. For normal "research X" requests, quick lookups, or fact-checking, use parallel-web-search instead.

Step 1: Start the research

Choose a descriptive filename based on the topic (e.g., ai-chip-market-2026, react-vs-vue-comparison). Use lowercase with hyphens, no spaces. Reuse this base name in step 2 as -o "$FILENAME".

parallel-cli research run "$ARGUMENTS" --processor pro-fast --text --no-wait --json

The --text flag tells the API to return a markdown report (with inline citations) when the task completes, instead of the default structured JSON. Use it for narrative/report-style requests, which is what most users want from "deep research." Drop --text if the user explicitly wants structured JSON output.

Optional with --text: pass --text-description "Keep under 1500 words, focus on M&A activity" to steer length, format, or focus.

If this is a follow-up to a previous research or enrichment task where you know the interaction_id, add context chaining:

parallel-cli research run "$ARGUMENTS" --processor lite-fast --text --no-wait --json --previous-interaction-id "$INTERACTION_ID"

By chaining interaction_id values across requests, each follow-up question automatically has the full context of prior turns — so you can drill deeper without restating what was already researched. Use a lighter processor (lite-fast or base-fast) for follow-ups since the heavy lifting was done in the initial turn.

This returns instantly. Do NOT omit --no-wait — without it the command blocks for minutes and will time out.

Read the full file on GitHub · 117 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. 4d ago First seen · 117 lines · 76 tokens per session scan A acbe1bd92527

Subscribe to this mod's changes

parallel-deep-research is a skill published in the GitHub repository parallel-web/parallel-agent-skills (73 stars, last pushed 20d ago), licensed MIT. It adds 76 tokens to every session and 1,502 once invoked, about $0.0004 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.

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