hyperresearch 0.8.4

Claude Code harness for disciplined, adversarially-audited deep research with full provenance.

The Most Powerful Deep Research Harness

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Hyperresearch turns Claude Code into a deep research agent. and currently leads the DeepResearch-Bench RACE leaderboard (benchmarked internally). A tier-adaptive 16-step pipeline produces adversarially-audited reports with full source provenance. Every fetched source lands in a persistent, searchable vault that compounds across sessions.

_{Forward-looking projection from a stratified pilot against the DeepResearch-Bench leaderboard snapshot (https://huggingface.co/spaces/muset-ai/DeepResearch-Bench-Leaderboard). Third party validation is pending.}

Install

cd your-project
pip install hyperresearch && hyperresearch install

Then /hyperresearch <anything> in Claude Code.

Python 3.11–3.13. (3.14 not yet supported — use pyenv install 3.13, uv venv -p 3.13, or py -3.13 -m venv .venv.)

Power users: hyperresearch install --global makes /hyperresearch reachable from every Claude Code session anywhere, at the cost of ~15 lines in every session's system reminder. Per-project install (above) keeps unrelated CC sessions clean.

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The 16-step research pipeline

The entry skill is a thin router. It bootstraps the canonical research query, then invokes one step skill per pipeline phase via Claude Code's Skill tool. Each step's procedure is loaded fresh into context only when needed defeating context-rot problems that makes long pipelines silently drop steps.

#	Step	What it does	Tiers
1	Decompose	Canonical query → atomic items + coverage matrix + tier classification	both
2	Width sweep	Multi-perspective search plan + parallel fetcher waves (Haiku)	both
3	Contradiction graph	Pair contradictions across the corpus into ranked clusters	full
4	Loci analysis	Two parallel loci-analysts → scored loci with source budgets	full
5	Depth investigation	K parallel depth-investigators → interim notes with committed positions	full
6	Cross-locus reconcile	Reconcile committed positions → comparisons.md	full
7	Source tensions	Extract expert disagreements → source-tensions.json	full
8	Corpus critic	"What source would overturn this?" + targeted gap-fill fetch	full
9	Evidence digest	Top claims + verbatim quotes → evidence-digest.md	full
10	Triple draft	Per-angle source curation + 3 parallel draft sub-orchestrators (light: single draft)	both
11	Synthesize	Plan + outline + spawn synthesizer subagent → final_report.md	full
12	Critics	4 adversarial critics in parallel → findings JSONs	full
13	Gap-fetch	Targeted fetch wave for critic-identified vault gaps	full
14	Patcher	Surgical Edit hunks applied to draft (tool-locked Read+Edit)	full
15	Polish	Hygiene + filler pass (tool-locked Read+Edit subagent)	both
16	Readability audit	Recommender writes JSON suggestions; orchestrator selectively applies	both

Depth Modes

In your prompt, you can request one of two tiers and the rest of the pipeline scales accordingly. Full mode is default.

Tier	Steps that run	Typical time
light	bounded factual queries, surveys, comparisons — 1 → 2 → 10 → 15 → 16	~30–40 min
full	deep argumentative analysis with adversarial review — all 16 steps	~1.5–2.5 hours

The two load-bearing principles

1. Patch, never regenerate. After step 11 produces the synthesized report (or step 10 for light tier), the only modifications are surgical Edit hunks. The patcher and polish auditor are tool-locked to [Read, Edit] at the Claude Code allowlist level so they physically cannot Write a new draft. Per-hunk caps make "just rewrite it" mechanically impossible. Critic findings that don't fit a small hunk escalate as structural issues.

2. Canonical research query is gospel. The verbatim user prompt is persisted to research/query-<vault_tag>.md once and re-read by every subsequent step and every spawned subagent. Wrapper requirements (save paths, citation format, terminal sections) are a separate contract.

Subagent roster

Agent	Model	Role
hyperresearch-fetcher	Sonnet	URL fetching via crawl4ai; runs 8–12 in parallel per wave
hyperresearch-source-analyst	Sonnet (1M ctx)	End-to-end digest of any single long source >5000 words
hyperresearch-loci-analyst	Sonnet	Reads the width corpus, returns 1–8 depth loci with rationale
hyperresearch-depth-investigator	Sonnet	Investigates one locus, writes one interim note with a committed position
hyperresearch-corpus-critic	Sonnet	"What source would overturn the current direction?" pre-draft gap analysis
hyperresearch-draft-orchestrator	Opus	One per draft angle; reads its curated source list and writes one draft
hyperresearch-synthesizer	Opus	Reads all 3 drafts, writes the final report (two-pass write, Read+Write locked)
hyperresearch-dialectic-critic	Opus	Counter-evidence the draft missed
hyperresearch-depth-critic	Opus	Shallow spots interim notes could fill
hyperresearch-width-critic	Opus	Topical corners the corpus supports but the draft ignores
hyperresearch-instruction-critic	Opus	Structural mismatches against the prompt's atomic items
hyperresearch-patcher	Opus	Tool-locked [Read, Edit]. Applies critic findings as surgical Edit hunks
hyperresearch-polish-auditor	Opus	Tool-locked [Read, Edit]. Cuts filler, strips hygiene leaks
hyperresearch-readability-recommender	Opus	Writes JSON suggestions for paragraph rhythm and list/table conversion

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The vault: persistent, searchable, compounding

Hyperresearch is not a one-shot report generator like most other Deep research harnesses. Every fetched source lands in a SQLite-indexed vault that every future research session can reuse.

hyperresearch search "ion-trap gate fidelity" -j           # Full-text search
hyperresearch search "quantum" --include-body -j           # Full-body search
hyperresearch note show <id1> <id2> <id3> -j               # Batch-read notes
hyperresearch graph hubs -j                                # Most-connected notes
hyperresearch graph backlinks <id> -j                      # Reverse links
hyperresearch lint -j                                      # Health check (broken links, missing tags)

Markdown is truth, SQLite is cache. Notes live as plain markdown with YAML frontmatter in research/notes/. The SQLite index is fully rebuildable. Delete it and hyperresearch sync reconstructs it from the markdown. The vault is inspectable in any editor, version-controllable in git, and readable without the tool installed.

PDFs fetch directly. hyperresearch fetch auto-detects PDF URLs (arXiv, NBER, SSRN, direct .pdf links) and extracts full text via pymupdf. Raw PDFs land in research/raw/<note-id>.pdf and the note's raw_file: frontmatter links back.

Provenance breadcrumbs. Every fetched source carries a --suggested-by link back to whatever surfaced it. The chain forms a rooted tree from seed fetches; the provenance lint rule catches disconnected components.

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What's structurally enforced

• Verbatim prompt as gospel — scaffold-prompt lint blocks if the scaffold doesn't open with the user's exact prompt
• Locus coverage — every step 4 locus must have a step 5 interim note; missing interims flag as errors
• Patch-only modification — steps 14, 15, 16 are tool-locked to [Read, Edit]. They cannot regenerate the draft
• Critical findings never silently skip — patch-surgery lint surfaces any critical finding the patcher couldn't apply
• Schema integrity — tier, content_type, and type are SQLite CHECK-constrained vocabularies; corrupted frontmatter cannot poison the index
• Hygiene leaks caught on the way out — scaffold sections, YAML frontmatter, and prompt echoes are stripped by step 15 before ship

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Authenticated crawling

Fetch from LinkedIn, Twitter, paywalled sites or anything you can log into:

hyperresearch setup       # Browser opens. Log into your sites. Done.

LinkedIn, Twitter, Facebook, Instagram, and TikTok automatically use a visible browser to avoid session kills.

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Academic APIs before web search

For any topic with a research literature, hit academic APIs BEFORE web search. They return citation-ranked canonical papers; web search returns derivative commentary.

• Semantic Scholar — https://api.semanticscholar.org/graph/v1/paper/search
• arXiv — https://export.arxiv.org/api/query
• OpenAlex — https://api.openalex.org/works
• PubMed — https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi

After the academic sweep, run web searches for context, news, non-academic angles, and at least one adversarial search ("criticism of X", "limitations of X").

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What it doesn't do

• It doesn't replace your judgment on which sources matter. The agent picks, you steer.
• It can't fetch what's behind a paywall you haven't logged into.
• It runs on Anthropic models Opus + Sonnet + Haiku via the subagent roster. Costs scale with tier and corpus size. If anyone wants to port this to Codex, put up a PR!
• The lint gate catches structural failures (missing scaffold, broken provenance, unresolved CRITICALs). It cannot guarantee factual accuracy, that's still your call.

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Requirements

• Python 3.11+
• Claude Code

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License

MIT

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