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  1. Home
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  3. RAG Frameworks
  4. Cap'n Hook
Cap'n Hook logo

Cap'n Hook

RAG Frameworks

Verified Publisher·Pending reviewVerified Adoption·Pending reviewEnterprise Ready·Pending review

Persistent, invalidation-aware memory for coding agents that recalls codebase discoveries and removes stale context when files change.

Actions
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Developers also use

Generated from similarity, co-save, category, project, and adoption signals.

Cognee logo
Cognee

RAG Frameworks· cognee.ai

Open source

Open-source AI memory and knowledge graph engine for persistent agent context.

Why recommended

Same category

Keep evaluating Cap'n Hook

Comparisons, category adoption data, and shortlist guides that answer the questions this profile raises next.

Weigh Cap'n Hook against the alternatives

  • Cap'n Hook alternativesEvery rag frameworks product developers evaluate in place of Cap'n Hook.
  • Cap'n Hook vs CogneeSide-by-side pricing, API surface, and adoption evidence.
  • Cap'n Hook vs SupermemorySide-by-side pricing, API surface, and adoption evidence.
  • Cap'n Hook vs Context7Side-by-side pricing, API surface, and adoption evidence.

Developer decision brief

Should I use Cap'n Hook?

Persistent, invalidation-aware memory for coding agents that recalls codebase discoveries and removes stale context when files change.

Open sourceDocs linked

Best for

  • RAG Frameworks decisions where you need a concrete shortlist.
  • Teams that prefer open-source or self-hostable options.
  • Evaluation where docs and examples matter before API integration.

Watch-outs

  • Not enough verified adoption data yet.
  • Docs linked on this profile.
  • Repository linked for inspection.
  • No developer reviews yet.

Quickstart

No canonical install command detected. Open the docs or profile quickstart below.

Use quickstart hereDocsGitHubWebsite

Compare alternatives

Cap'n Hook vs CogneeCap'n Hook vs SupermemoryCap'n Hook vs Context7
Build with this

What you would get weekly

Save or follow Cap'n Hook to track rank movement, new alternatives, starter examples, benchmark/docs changes, and project activity. Default cadence is weekly.

No live product opportunities yet

You can still use the workbench: build a stack, publish proof, and follow starter challenge programs. New credits, workshops, and launch programs appear here once companies publish them.

Enterprise fit

Buyer brief for procurement and architecture review

Source-labeled signals for cost, reliability, security, integration, and adoption proof. Missing compliance evidence is shown as a gap, not guessed.

Compare for enterpriseExport brief
Inferred

Commercial model

Open source profile signal; exact enterprise terms need buyer review.

View source
Needs verification

Reliability

No status page, uptime, or SLA evidence attached

Buyer recommendation

Shortlist only after verifying Reliability and Security/compliance.

Docs are linked for implementation review.Open-source path can reduce lock-in review.At least one buyer evidence source is linked or verified.

Vendor value loop

Vendors receive anonymous aggregate evaluation demand by default. Account details are shared only after explicit buyer contact or consent.

Request vendor contact

Real data backfill while adoption proof grows

These are source-linked enrichment paths for missing fields. They are treated as proxies until claimed-company data and first-party tokens& adoption events replace them.

GitHub repository APIfreeStars, forks, license, topics, releases, default branch, repo freshness, and public contributor signal.OpenSSF ScorecardfreeOpen-source security posture checks for repos before enterprise review.npm downloads API

Events / Tours

Cap'n Hook developer events

Hackathons, workshops, office hours, launches, and partner challenges tied to this product.

Claim or partner

No public events yet

Claimed teams can add hackathons, webinars, office hours, and challenges, then measure attendee to usage ROI.

Quickstart

Preparing Cap'n Hook docs pack
Streaming

The product profile is ready. Official docs, README snippets, and the AI paste pack are loading in the background.

Build context

Developer projects using Cap'n Hook

No public community builds yet. These starter examples are templates, not fabricated activity.

Publish your build
Starter example

RAG support chatbot

Template

Index help docs, retrieve relevant passages, answer with citations, and trace failures before shipping.

Built with

Pinecone logoPineconeQdrant logoQdrantLangChain logoLangChainLangSmith logoLangSmith
Load docs
Embed chunks
Retrieve context
Trace bad answers
CompareStart with vector DB

Public credibility status

Claimable

This profile now separates verified proof from self-reported claims, so founders can improve status without buying rank.

Profile strength

41/100

Claimable profile · 6 gaps

Verified Publisher

Verify ownership through DNS or well-known file.

Verified Adoption

Connect SDK/API events to prove adoption.

Team Verified

Add founder/team proof.

GitHub

Repository linked

Docs

Docs linked

Security

Add SOC2/security/compliance proof.

Backers

Add verified backer proof.

Protocol/API

Agent-readable proof present

Freshness

Awaiting fresh proof.

Built by
C

Cap'n Hook team

Founder / team from Cap'n Hook

OSS MaintainerProtocol Ready
Proof file
ProofStateEvidence

Publisher ownership

Domain or organization claim · Live

Pending reviewUnclaimed profile45% confidence

Verified adoption

SDK/API/CRM telemetry · Pending

AgentRank trust profile

Public proof buyers and agents can trust

Claim this tool to see who is evaluating it

AgentRank

17

Adoption + trust composite

Trust Score

35

observed

Category Rank

Not ranked yet

RAG Frameworks

Protocols

SDK

Agent-readable metadata

Trust Registry

AgentRank evidence file
observed

Source breakdown

GitHub21

68% confidence

Protocol support

SDK

Agent-readable protocol evidence raises trust and commercial readiness.

Adoption over time
Last 8 weeksSmall cohort suppressed · trust 35

Timeline appears after verified events.

We do not draw a fake adoption chart before live usage, self-reported proof, or challenge activity exists for this product.

Suppressed

active developers

Unavailable

verified adoptions

Suppressed

retention

Your developer adoption profile is already visible.

Claim it to verify data, add integrations, and unlock adoption intelligence on developers and accounts evaluating Cap'n Hook.

Claim your tool

Developer identities

See the builders behind saves, docs clicks, API calls, and retained usage.

Talk to sales

Account map

Resolve developer activity into companies, teams, and enterprise accounts.

Developer identities, account mapping, retention cohorts, and competitor overlap are available on Growth and Enterprise plans.

About Cap'n Hook

Persistent, invalidation-aware memory for coding agents that recalls codebase discoveries and removes stale context when files change.

Resources
Documentationdocumentation

Official setup, usage, and evaluation guide

GitHub repositoryGitHub

Official MIT-licensed source repository

Show HN evidencesource

Live Show HN launch record

Workspace actions

Sign up to save, follow, compare, publish builds, or verify ownership.

Public links
Visit WebsiteDocumentationGitHubView Alternatives3 Resources
GitHub Stats

21

Stars

0

Forks

1

Issues

Quick Info
PricingOpen source
Open sourceYes
API availableNo
Add to Your Project
[![Cap'n Hook on Adoption Intelligence](https://tokensand.com/api/badges/capn-hook)](https://tokensand.com/tools/rag-frameworks/capn-hook)
Cap'n Hook badge previewPreview

Add this badge to your README.md to show your listing on Adoption Intelligence.

22,861
2,178
Open source
Why recommended

Same category

Supermemory logo
Supermemory

RAG Frameworks· supermemory.ai

Freemium

Memory and context API for adding long-term recall, RAG, and user profiles to AI agents.

Why recommended

Same category

27,624
2,390
Open source
Why recommended

Same category

Context7 logo
Context7

RAG Frameworks· context7.com

Freemium

Up-to-date, version-specific documentation retrieval for AI coding agents through MCP and API workflows.

Why recommended

Same category

57,489
2,714
Open source
Why recommended

Same category

LangChain logo
LangChain

RAG Frameworks· langchain.com

Open source

Framework for composing agents, RAG workflows, retrieval, and tool calls.

Why recommended

Same category

Open source
Why recommended

Same category

  • Cap'n Hook vs LangChainSide-by-side pricing, API surface, and adoption evidence.

    • Check the adoption evidence

    • RAG Frameworks developers actually keep usingFiltered to products with verified usage events, cohort breadth, and retention.
    • AgentRank category rankingsHow every category is ordered by adoption proof, trust, and protocol support.
    • Best AI Tools for RAGShortlist guide for this category, with the tradeoffs written out.
    • Best Open Source AI ToolsShortlist guide for this category, with the tradeoffs written out.

    Own Cap'n Hook? Generate its adoption badge embed, or claim the profile to send verified usage events.

    Needs verification

    Security/compliance

    No security, trust, or compliance source attached

    Source linked

    Integration fit

    Documentation source linked

    View source
    Needs verification

    Adoption proof

    No public adoption proof attached

    free
    Public JavaScript package download trends for SDK/tool adoption proxies.
    PyPI StatsfreePublic Python package download trends for SDK/tool adoption proxies.
    Product Hunt APIfreemiumLaunch timing, maker activity, and early-adopter demand signals when products launch publicly.
    Pending review
    GitHubWebsite

    Team proof is pending until the product profile is claimed.

    OSS MaintainerProtocol Ready
    Owner checklist

    Verified domain

    +15

    Verify publisher ownership to remove the unclaimed status gap.

    SDK/API telemetry connected

    +20

    Connect SDK to unlock Verified Adoption.

    Verified adoption badge

    +10

    Send enough verified adoption events to pass the cohort threshold.

    Funding, backer, or security proof

    +8

    Add funding, backer, or security evidence to qualify for higher trust badges.

    Improve profile
    Pending review
    Insufficient cohort50% confidence

    Category rank

    AgentRank methodology · Pending

    		Pending reviewRank pending40% confidence

    Team proof

    Domain, social, and team evidence · Live

    		Pending reviewTeam signal exists45% confidence

    Security and enterprise readiness

    Docs, compliance, protocol, and readiness signals · Pending

    		Pending reviewSecurity proof pending38% confidence
    Share and embed

    Public profile card

    Share the product's rank, trust state, and top badges.

    Open

    Verified Adoption badge

    README and website badge backed by telemetry.

    Open
    [![Verified Adoption](/api/badges/capn-hook?variant=verified)](https://tokensand.com/tools/rag-frameworks/capn-hook)

    Top 10 badge

    Unlocks automatically when the profile enters Top 10.

    Open
    [![Top 10](/api/badges/capn-hook?variant=top10)](https://tokensand.com/tools/rag-frameworks/capn-hook)

    Team launch card

    Founder/team credibility card for launch posts and investor updates.

    Open

    Weekly momentum card

    Share rank movement and verified adoption growth.

    EnterpriseOpen
    Launch copy

    Cap'n Hook is live as a public adoption profile: https://tokensand.com/tools/rag-frameworks/capn-hook. Verified proof beats vanity metrics.

    Embed path: /api/badges/capn-hook?variant=verified · Profile: /tools/rag-frameworks/capn-hook

    Tracked Developers

    0

    Known active developer activity

    Profile Status

    Unclaimed

    Owner action needed

    Benchmark proof

    Benchmark proof pending

    Attach latency, cost, accuracy, reliability, or eval evidence to unlock the performance component.

    Trust gaps

    Verify publisher ownership
    Send SDK/API telemetry
    Attach benchmark evidence

    Enterprise verification can enrich evidence and export proof packages, but cannot buy rank.

    Claim this tool to see who is evaluating it
    Next best action

    Claim Cap'n Hook before competitors use this profile as proof.

    Connect usage events, resolve developer identities, and see which accounts are evaluating Cap'n Hook.

    Claim this tool to see who is evaluating it
    Talk to sales

    Retention cohorts

    Track first API call through 7/30/90-day retention and expansion.

    Talk to sales

    Competitor overlap

    Find developers evaluating alternatives and switching between tools.

    Talk to sales

    Category benchmark

    Compare activation, retention, and growth against your market.

    Talk to sales

    Recommended actions

    Prioritized DevRel, product, and sales plays based on live adoption signals.

    Talk to sales
    Ship with Cap'n Hook in 60 seconds
    Hackathon-readyShell

    Auto-detected from official docs

    npm
    npm install -g capn-hook
    Docs:Official DocsGitHubWebsite