deep-research-critic

deep-research-critic is an agent for Claude Code from qf-studio/navigator. It costs 74 tokens per session (1,174 once invoked), scanned A, original, MIT.

A review step for a deep-research report that checks the draft against its question and saved source notes. It records problems for another tool to fix rather than editing the report itself.

In plain words
What is it for?
It is used in research pipelines to inspect a finished draft and write structured findings for a later patching step.
Why use it?
It helps catch missing counter-evidence, unsupported claims, incorrect quotations, and sections that do not match the research plan.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the navigator plugin — 33 skills, 6 agents shipped together

Good fit It is used in research pipelines to inspect a finished draft and write structured findings for a later patching step.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/qf-studio/navigator/deep-research-critic
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/qf-studio/navigator

Made for: Claude Code.

Or install navigator, the plugin that ships this one along with the rest of its 33 skills, 6 agents.

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-critic

README.md
[![agentmods](https://agentmods.dev/badge/agents/qf-studio/navigator/deep-research-critic/github.svg)](https://agentmods.dev/agents/qf-studio/navigator/deep-research-critic)
Your own site
<a href="https://agentmods.dev/agents/qf-studio/navigator/deep-research-critic"><img src="https://agentmods.dev/badge/agents/qf-studio/navigator/deep-research-critic/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 deep-research-critic

Your own site · 80×15
<a href="https://agentmods.dev/agents/qf-studio/navigator/deep-research-critic"><img src="https://agentmods.dev/badge/agents/qf-studio/navigator/deep-research-critic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,174 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 $0.00074 $0.01174
Opus 5.5 $0.00030 $0.00470
Sonnet 5.5 $0.00015 $0.00235
Haiku 4.5 $0.00007 $0.00117

Measured 20d ago against content hash dd48fc262db9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

deep-research-critic 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 20d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

agents/deep-research-critic.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the critic in the nav-deep-research pipeline. Your job is to find where the draft fails the research query or the evidence on disk, and to emit findings a tool-locked patcher can apply as small edits. You do not rewrite. You do not soften. A finding that does not trace back to the research_query or to a source note is a finding the patcher should reject, so do not emit it.

Inputs (from the spawn prompt)

  • research_query — verbatim, block-quoted. Gospel.
  • pipeline position — one sentence.
  • run_slug, run_dir, functions_dir.
  • atomic_items — the step 1 decomposition. Structural match is judged against it.
  • draft_path — <run_dir>/report.md.
  • output_path — <run_dir>/findings/critic.json.

Procedure

  1. Read the draft in full. Read <run_dir>/query.md.
  2. List the sources: python3 "$functions_dir/source_store.py" list --run "<run_slug>". Note which ids are status: ok, and which have fetch_method: webfetch.
  3. Run five passes over the draft, each producing findings:
    • Dialectic. For each committed claim, Grep the sources/ notes for counter-evidence that is ON DISK but absent from the draft. A source the draft cites for one thing while ignoring its disagreement on another counts.
    • Support. Every sentence that asserts a fact or a number must carry a [n]. Flag uncited assertions, and cited assertions whose source note does not actually say that (open the note, check).
    • Quote integrity. Every quoted span must appear verbatim in the cited note (Grep for a distinctive fragment). A quote from a webfetch source is a finding regardless, severity major, fix: paraphrase.
    • Instruction. Compare the section structure against atomic_items and the query's own shape. A missing item is critical. An item covered only in passing is major.
    • Corroboration. Read the lens column of the Sources table. Flag any Key finding whose only citation is a breadth-lens source, severity major, fix: cite a corroborating source that is already on disk, or move the claim to Open questions. Do not flag a single canonical or adversarial source — a spec, a vendor doc or a bug report can stand alone. Judge the lens as recorded; you are not re-ranking sources by reputation.
  4. Write the findings JSON to output_path in ONE Write call.

Read the full file on GitHub · 97 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. 20d ago First seen · 97 lines · 74 tokens per session scan A dd48fc262db9

Subscribe to this mod's changes

deep-research-critic is an agent published in the GitHub repository qf-studio/navigator (355 stars, last pushed today), licensed MIT. It adds 74 tokens to every session and 1,174 once invoked, about $0.0003 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 2026-09-25.

Related

Other agents, from other repositories

navigator-research

Specialized codebase exploration and architecture discovery. Use PROACTIVELY for understanding unfamiliar code, finding patterns, mapping system architecture, and answering "how does X work?" questions. Use the generic Explore agent for one-off lookups; use me for architecture mapping that should inform future work.…

alekspetrov/navigator · 117 tokens

deep-research-critic

Adversarial reader of a nav-deep-research draft. Finds ignored counter-evidence, unsupported claims, verbatim quotes from paraphrase-only sources, and structural mismatch against the decomposition. Writes a findings JSON the patcher applies; cannot edit the report. Spawned once at step 4 by the nav-deep-research skill.

alekspetrov/navigator · 74 tokens

deep-research-writer

Writes the single report.md of a nav-deep-research run from the run's source notes, following the readable report layout and the citation contract the ship gate checks. Spawned once by the nav-deep-research skill at step 3 (draft). Writes the report exactly once; later changes are the patcher's.

alekspetrov/navigator · 71 tokens

task-planner

Implementation planning and task breakdown specialist. Use PROACTIVELY when planning features, refactoring, or complex changes. Creates detailed implementation plans with effort estimates.

alekspetrov/navigator · 35 tokens

deep-research-patcher

Applies critic findings to a nav-deep-research draft as surgical Edit hunks and records a patch log. Tool-locked so it cannot regenerate the report. Spawned once at step 5 by the nav-deep-research skill.

alekspetrov/navigator · 55 tokens

deep-research-fetcher

Fetches one disjoint batch of URLs into a nav-deep-research run as fenced source notes. Spawned in parallel waves by the nav-deep-research skill (step 2 sweep, step 4 gap-fetch). Never searches for new URLs on its own, never reads other fetchers' batches.

alekspetrov/navigator · 69 tokens