mcpField

Skills

96,981 packaged capabilities and playbooks for agents. Install any of them with one command.

Security

H
hunt-ssrf
hunt-ssrf
elementalsouls / claude-bughunter

Hunting skill for ssrf vulnerabilities. Built from 15 public bug bounty reports including AWS metadata SSRF (HackerOne $25k Analytics PDF, Shopify Exchange $25k, Capital One 106M-record breach, Dropbox/HelloSign $4,913), GCP metadata SSRF (Snapchat $4k), Azure IMDS SSRF (Azure DevOps $15k chain, ChatGPT Custom Actions MSRC), DNS rebinding SSRF (Concrete CMS, GitLab UrlBlocker), gopher-protocol-to-Redis-RCE (Yahoo Mail $15k), link-preview SSRF (Reddit Matrix $6k), and headless-browser PDF-generator SSRF chains. Use when hunting SSRF on any target — OOB Collaborator confirmation mandatory for blind cases.

Security309
K
kernel-security
kernel-security
mohitmishra786 / low-level-dev-skills

Linux kernel security skill for LSM, hardening, and exploit mitigations. Use when writing SELinux/AppArmor policies, seccomp-bpf filters, configuring KASLR/CET/PAC, or triaging kernel CVEs. Activates on queries about SELinux, AppArmor, seccomp, KASLR, CET, PAC, BTI, KASAN, or kernel CVE.

Security309
M
model-supply-chain-security
model-supply-chain-security
bagelhole / devops-security-agent-skills

Secure the AI model supply chain with artifact signing, provenance attestation, SBOM workflows, dependency controls, and trusted model promotion

Security309
A
analyzing-outlook-pst-for-email-forensics
analyzing-outlook-pst-for-email-forensics
mukul975 / anthropic-cybersecurity-skills

Parse Microsoft Outlook PST and OST files using libpff and pst-utils to extract message content, headers, attachments, deleted items, and MAPI metadata, including recovery of items from the Recoverable Items folder. Use for email forensic investigations, legal e-discovery, or incident response requiring reconstruction of communication patterns or tracing message routing from Outlook archives

Security308
A
azure-security
azure-security
microsoftdocs / agent-skills

Expert knowledge for Azure Security development, including best practices, decision making, security, configuration, integrations, coding patterns, and deployment. Use when configuring Azure antimalware, container SBOM/signing, CMK encryption, AKS/VM hardening, or Key Vault keys, and other Azure Security-related development tasks. Not for Azure Defender For Cloud (use azure-defender-for-cloud), Azure Information Protection (use azure-information-protection), Azure DDoS Protection (use azure-ddos-protection), or Azure Web Application Firewall (use azure-web-application-firewall).

Security308
S
secure-headers-csp-builder
secure-headers-csp-builder
patricio0312rev / skills

Implements security headers and Content Security Policy with a safe rollout strategy (report-only → enforce), testing, and compatibility checks. Use for "security headers", "CSP", "HTTP headers", or "XSS protection".

Security308
S
SQL Injection Testing
SQL Injection Testing
davila7 / claude-code-templates

This skill should be used when the user asks to "test for SQL injection vulnerabilities", "perform SQLi attacks", "bypass authentication using SQL injection", "extract database information through injection", "detect SQL injection flaws", or "exploit database query vulnerabilities". It provides comprehensive techniques for identifying, exploiting, and understanding SQL injection attack vectors across different database systems

Security308
A
analyzing-powershell-script-block-logging
analyzing-powershell-script-block-logging
mukul975 / anthropic-cybersecurity-skills

Parse Windows PowerShell Script Block Logs (Event ID 4104) from EVTX

Security307
F
fivem-development
fivem-development
proelias7 / fivem-skill

FiveM development best practices for any framework (vRP, QBCore, Qbox, ESX). Covers performance, security, client/server communication, cache (cacheaside + client-side cache §2.1.1), cerberus (load balance, SafeEvent, SetCooldown), view-cache audit (audit-passes.md §2.4), client-callable endpoint exposure & server auth (§5.1), input validation (§5.3), quality gates for implementation/refactor (quality-gates.md), asset discovery, framework auto-detection, and dynamic documentation fetching. Use when the user works with FiveM, Lua scripts, natives, resources, fxmanifest, optimization, /fxmind audit, or general server development without a specific framework context.

Development307
H
hunt-idor
hunt-idor
elementalsouls / claude-bughunter

Hunting skill for idor vulnerabilities. Built from 26 public bug bounty reports. Use when hunting idor on any target.

Security307
O
openclaw-deployment-hardening
openclaw-deployment-hardening
bagelhole / devops-security-agent-skills

Secure OpenClaw deployments with preflight hardening checks, CI/CD guardrails, container runtime restrictions, and post-deploy verification. Use when shipping OpenClaw with Docker, Kubernetes, or automated release pipelines

Security307
P
privilege-escalation-methods
privilege-escalation-methods
sickn33 / agentic-awesome-skills

Provide comprehensive techniques for escalating privileges from a low-privileged user to root/administrator access on compromised Linux and Windows systems. Essential for penetration testing post-exploitation phase and red team operations.

Security307
3
304-frameworks-spring-boot-security
304-frameworks-spring-boot-security
jabrena / plinth

Use when you need to design, review, or improve security in Spring Boot applications — including SecurityFilterChain, OAuth2/JWT resource server patterns, form login basics, method security (@PreAuthorize), CSRF and CORS for APIs, session fixation, security headers, exception handling, password encoding, and sensitive-data-safe logging. This should trigger for requests such as Add Spring Boot security support; Review Spring Boot security configuration; Improve API authorization in Spring Boot; Add JWT resource server security in Spring Boot; Harden Spring Boot security headers and CSRF settings. Part of Plinth Toolkit

Security306
H
hunt-rce
hunt-rce
elementalsouls / claude-bughunter

Hunting skill for RCE vulnerabilities. Built from 67 public bug bounty reports. Use when hunting RCE on any target

Security306
O
offensive-osint
offensive-osint
elementalsouls / claude-bughunter

Operational arsenal for authorized external red-team and bug-bounty recon. Concrete probes, wordlists, regexes, dorks, curl one-liners for: subdomain enum, GraphQL/Swagger/REST discovery, identity fabric (Entra/Okta/ADFS/Google/SAML/M365 deep — Teams/SharePoint/OneDrive), cloud bucket enum (S3/GCS/Azure), CDN/WAF bypass, origin discovery, vendor fingerprinting (Citrix/F5/Pulse/Fortinet/PaloAlto/Cisco/VMware), CI/CD exposure, 48-pattern secret-scan catalog (AWS/GCP/GitHub/Stripe/Slack/Anthropic/OpenAI/Atlassian/DataDog/npm/PyPI), Postman workspaces, breach correlation (HudsonRock/HIBP/DeHashed/IntelX), TLS/JA3 audit, certificate transparency, JS endpoint extraction, package registry leaks, mobile/APK recon, sat imagery, sector-specific recon (healthcare DICOM, finance SWIFT, ICS/SCADA Modbus/BACnet). Detail content in 15 modular reference files, loaded on demand. Use for any authorized recon: scoping, asset discovery, attack-path mapping, secret triage, severity scoring.

Security306
S
service-itsm-agentic-setup-agent-runtime-access-assign
service-itsm-agentic-setup-agent-runtime-access-assign
forcedotcom / sf-skills

Grant a user the runtime permissions an activated ITSM agent's actions need so the actions do not fail on permission errors. After a Fulfiller or Employee agent is activated, this skill detects which platform feature permission sets are provisioned (Prompt Templates, Data Cloud, Unified Catalog), lets you pick a tier (user/agent vs admin) per feature and which user(s) to assign, then assigns them (license first when license-gated). It also creates a custom "Agent Access" permission set granting the activated agents you choose and assigns it to the user — all via the Salesforce CLI. Use to grant a user access to an activated agent, to assign prompt-template, data-cloud, or unified-catalog access, or to create an Agent Access permission set. DO NOT TRIGGER for enabling Agentforce for IT Service toggles, creating or activating an agent, the Fulfiller activation action-surfacing gap (service-itsm-agentic-setup-itsm-agentforce-permset-assign), CMDB access, or generic permission-set assignment.

Agent workflows306
S
supabase-best-practices
supabase-best-practices
pedrobarretocw / supabase-best-practices

Supabase security and performance guidelines with Clerk authentication integration. Contains 40+ rules across 10 categories covering RLS policies, Clerk setup, database security, and more.

Security306
A
analyzing-ransomware-leak-site-intelligence
analyzing-ransomware-leak-site-intelligence
mukul975 / anthropic-cybersecurity-skills

Safely monitor ransomware group Tor-hosted data leak sites (DLS) to collect and extract structured victim posting data, track group activity trends over time, and produce sector- and geography-specific ransomware risk assessments. Use when performing threat intelligence gathering on active ransomware groups or building proactive defense reporting from double-extortion leak-site activity.

Security305
S
supabase-postgres-best-practices
supabase-postgres-best-practices
supabase-community / supabase-plugin

Postgres best practices maintained by Supabase, for Postgres running anywhere. Load this skill BEFORE writing or changing anything that lives in a Postgres database: creating or altering tables and columns (including choosing column types), schema design, migrations and declarative schema files, RLS policies and the tests that verify them, indexes, triggers, database functions, queues and scheduled jobs (pg_cron, pgmq), vector/semantic search (pgvector), and restoring dumps (pg_restore) or importing data. Also load it when diagnosing slow queries, high CPU, timeouts, EXPLAIN plans, connection exhaustion, locking, bloat, or rows visible to the wrong user or tenant. This is not just a performance guide — schema, migration, security, and SQL authoring tasks need these rules too, even for a one-column change or a single query.

Data & databases305
A
analyzing-packed-malware-with-upx-unpacker
analyzing-packed-malware-with-upx-unpacker
mukul975 / anthropic-cybersecurity-skills

Identifies and unpacks UPX-packed malware samples, including binaries with modified UPX magic bytes or headers that block automated decompression, to recover the original executable for static analysis. Use when a sample shows high entropy, minimal imports, or only LoadLibrary/GetProcAddress in its import table, or when preparing a packed binary for disassembly in Ghidra or IDA.

Security304
A
analyzing-ransomware-encryption-mechanisms
analyzing-ransomware-encryption-mechanisms
mukul975 / anthropic-cybersecurity-skills

Analyzes encryption algorithms, key management, and file encryption

Security304
C
conducting-network-penetration-test
conducting-network-penetration-test
mukul975 / anthropic-cybersecurity-skills

'Conducts comprehensive network penetration tests against authorized

Security304
L
llamaguard
llamaguard
davila7 / claude-code-templates

Meta's 7-8B specialized moderation model for LLM input/output filtering. 6 safety categories - violence/hate, sexual content, weapons, substances, self-harm, criminal planning. 94-95% accuracy. Deploy with vLLM, HuggingFace, Sagemaker. Integrates with NeMo Guardrails.

Security304
R
red-team-tactics
red-team-tactics
davila7 / claude-code-templates

Red team tactics principles based on MITRE ATT&CK. Attack phases, detection evasion, reporting.

Security304
S
soc2
soc2
sushegaad / claude-skills-governance-risk-and-compliance

Expert SOC 2 compliance assistant covering all five Trust Services Criteria (Security/CC, Availability/A, Confidentiality/C, Processing Integrity/PI, Privacy/P). Use this skill whenever a user mentions SOC 2, Trust Services Criteria, SOC 2 Type 1 or Type 2, audit readiness, compliance gaps, control documentation, evidence collection, vendor risk questionnaires, or anything related to AICPA service organization controls. Trigger even for adjacent topics like “we need to get audited”, “a customer asked for our security report”, “writing an information security policy”, or “preparing for an audit”. Covers gap analysis, policy writing, control documentation, audit evidence preparation, and vendor risk reviews for organizations at any maturity level — from first-time startups to seasoned compliance teams

Security304
W
web2-recon
web2-recon
elementalsouls / claude-bughunter

Web2 recon pipeline — subdomain enumeration (subfinder, Chaos API, assetfinder), live host discovery (dnsx, httpx), URL crawling (katana, waybackurls, gau), directory fuzzing (ffuf), JS analysis (LinkFinder, SecretFinder), continuous monitoring (new subdomain alerts, JS change detection, GitHub commit watch). Use when starting recon on any web2 target or when asked about asset discovery, subdomain enum, or attack surface mapping.

Security304
1
1password
1password
steipete / agent-scripts

Set up and use 1Password CLI (op, one-password). Use when installing the CLI, enabling desktop app integration, signing in, selecting Peter's multi-account setup, or storing/reading/injecting/running secrets via op. Always use tmux for op commands.

Security303
O
openrouter-oauth
openrouter-oauth
openrouterteam / skills

Implement "Sign In with OpenRouter" using OAuth PKCE — framework-agnostic, no SDK or client registration required. Use when the user wants to add OpenRouter login, authentication, sign-in buttons, OAuth, or AI model inference API keys for browser-based apps. No client registration, no backend, no secrets required.

Development303
P
platform-dsar-policy-manage
platform-dsar-policy-manage
forcedotcom / sf-skills

Configure, run, and audit DsarPolicy Right-to-Portability exports end to end: author the data map over a subject's related records, resolve a request's subject (email/name/id) to a root-entity record, run an export against an ACTIVE policy (poll a couple of times, then ask before continuing; download once terminal), and read run history. Use when the user needs to set up, edit, execute, or inspect a DsarPolicy or Right-to-Portability (RTP) export, or audit which personal data a policy does not cover yet. TRIGGER when: the user configures a DsarPolicy or RTP data map, authors DsarPolicyPath or DsarPolicyField metadata, runs or exports a subject's portable data, downloads an RTP export file, reviews DsarPolicy run history, or asks what personal data the policy does not cover yet (coverage gap analysis). DO NOT TRIGGER when: the user wants to erase, delete, or remove a subject's records (RTP is portability export, not erasure — this skill deletes nothing), mask sandbox PII, or deploy unrelated metadata.

Security303
F
frappe-code-review
frappe-code-review
frappe / skills

Review code for any Frappe application — a checklist distilled from years of engineering practice on correctness, security, performance, concurrency, readability, API design, and testing. Use this when reviewing a diff, a PR, or a piece of code for quality and security, or when you want a reviewer's checklist grounded in hard-won Frappe/ERPNext lessons.

Testing & quality301
H
hunt-oauth
hunt-oauth
elementalsouls / claude-bughunter

Hunting skill for OAuth vulnerabilities, built from 19 public bug bounty reports. Use when hunting OAuth on any target.

Security301
L
laravel-permission-development
laravel-permission-development
spatie / laravel-permission

Build and work with Spatie Laravel Permission features, including roles, permissions, middleware, policies, teams, and Blade directives.

Development301
X
xss-prevention
xss-prevention
secondsky / claude-skills

XSS attack prevention with input sanitization, output encoding, and Content Security Policy. Use for user-generated content, rich text editors, web application security, or when encountering stored XSS, reflected XSS, DOM manipulation, or script injection errors.

Security301
A
anti-cheat-systems
anti-cheat-systems
gmh5225 / awesome-game-security

Analyze layered anti-cheat architecture, detection evidence, telemetry, and enforcement tradeoffs. Use for system-level defense questions; use narrower skills for DMA, kernel, graphics, mobile, or server details.

Security300
C
comprehensive-review-full-review
comprehensive-review-full-review
sickn33 / agentic-awesome-skills

Use when working with comprehensive review full review

Testing & quality300
P
protocol-reverse-engineering
protocol-reverse-engineering
sickn33 / agentic-awesome-skills

Comprehensive techniques for capturing, analyzing, and documenting network protocols for security research, interoperability, and debugging

Security300
S
secure-code-guardian
secure-code-guardian
farmage / opencode-skills

Use when implementing authentication/authorization, securing user input, or preventing OWASP Top 10 vulnerabilities — including custom security implementations such as hashing passwords with bcrypt/argon2, sanitizing SQL queries with parameterized statements, configuring CORS/CSP headers, validating input with Zod, and setting up JWT tokens. Invoke for authentication, authorization, input validation, encryption, OWASP Top 10 prevention, secure session management, and security hardening. For pre-built OAuth/SSO integrations or standalone security audits, consider a more specialized skill.

Security300
C
certified-variables
certified-variables
dfinity / icskills

Serve cryptographically verified responses from query calls using Merkle trees and subnet BLS signatures. Covers the certified data API, RbTree/CertTree construction, witness generation, HTTP response certification for custom http_request canisters (ic-http-certification), and frontend certificate validation (@dfinity/certificate-verification). Use when query responses need verification, certified data, or response authenticity proofs. For static frontends served by the certified-assets canister, use the static-site skill instead: certification is automatic there.

Security298
S
sca-audit
sca-audit
owasp / secure-agent-playbook

Scan project dependencies for known vulnerabilities (CVEs). Use when reviewing dependency files (package.json, requirements.txt, go.mod, pom.xml, Gemfile, Cargo.toml, etc.), triaging Dependabot/Renovate alerts, or performing pre-deployment security checks.

Security298
D
darkmatter-gitops-conventions
darkmatter-gitops-conventions
darkmatter / skills

Safe-change playbook for the darkmatter/gitops repo—pre-commit validation (kubeconform with CI-identical flags, yq for YAML manifests, jq for SOPS JSON, git diff --check), SHA-pinned images, KSOPS/SOPS secret-editing rules, rollback via revert, and how ArgoCD reconciles. Use for any change to darkmatter/gitops (manifests, Helm values, apps/*.yaml, secrets), when asked to bump an image tag, wire a secret, or roll back a deploy. Also use when tempted to kubectl apply/edit/patch anything—the answer is no.

Cloud & DevOps297
H
hunt-ato
hunt-ato
elementalsouls / claude-bughunter

Hunt account takeover taxonomy — 9 distinct paths to ATO, plus chains. Paths: (1) password reset flaws (host-header injection redirects token, predictable/numeric token, Referer leak, no-expiry/reuse), (2) email change without re-auth, (3) OAuth account-link CSRF, (4) MFA bypass (per hunt-mfa-bypass), (5) session fixation, (6) JWT manipulation (forge token to another identity; crypto details → hunt-jwt-crypto), (7) password change without step-up (chain with login timing/length oracle), (8) social-recovery / security-question brute-force, (9) SSO subdomain takeover at OAuth redirect_uri. Chains: cookie theft + password oracle + no step-up = persistent ATO; lax redirect_uri = auth-code theft; dangling-CNAME takeover at redirect_uri = ATO. Validate: demonstrate real takeover of test account B from attacker A's session; OOB/Collaborator confirm blind token-leak steps. Use when hunting ATO chains, testing password reset / email change / MFA / OAuth / session / JWT, or chaining primitives toward Critical.

Security297
P
performing-web-application-firewall-bypass
performing-web-application-firewall-bypass
mukul975 / anthropic-cybersecurity-skills

Bypasses Web Application Firewall protections using encoding tricks,

Security297
W
web-security
web-security
academind / ai-config

Enforce web security and avoid security vulnerabilities

Security297
A
anti-reversing-techniques
anti-reversing-techniques
sickn33 / agentic-awesome-skills

Analyze anti-debugging, obfuscation, and anti-tamper techniques during authorized binary analysis and reverse engineering

Security296
M
meteor-pubsub
meteor-pubsub
meteor / agent-skills

Use when authoring or debugging Meteor publications and subscriptions (Meteor.publish, Meteor.subscribe). Triggers on publication strategies (SERVER_MERGE, NO_MERGE, NO_MERGE_NO_HISTORY), the low-level publish API (added/changed/removed), cursor authorization, reactive joins, leaked documents. Use this skill when the user asks about pub/sub or asks about reactive data fetching.

Development296
N
nist-csf
nist-csf
sushegaad / claude-skills-governance-risk-and-compliance

Expert NIST Cybersecurity Framework (CSF) advisor covering CSF 2.0 and CSF 1.1. Use this skill whenever a user asks about NIST CSF, cybersecurity risk management, the six CSF functions (Govern, Identify, Protect, Detect, Respond, Recover), CSF profiles, implementation tiers, gap assessments, organizational profiles, community profiles, CSF core subcategories, informative references, or mapping to other frameworks (NIST SP 800-53, ISO 27001, CIS Controls, COBIT). Also trigger for questions like "how do I implement NIST CSF?", "what does CSF 2.0 change?", "help me build a CSF profile", "how do I assess my cybersecurity posture?", or any request involving organizational cybersecurity risk strategy or framework alignment.

Security296
S
security-scanning-security-dependencies
security-scanning-security-dependencies
sickn33 / agentic-awesome-skills

You are a security expert specializing in dependency vulnerability analysis, SBOM generation, and supply chain security. Scan project dependencies across multiple ecosystems to identify vulnerabilities, assess risks, and provide automated remediation strategies.

Security296
A
alicloud-security-kms-test
alicloud-security-kms-test
cinience / alicloud-skills

Minimal smoke test for KMS skill. Validate auth and read-only key listing path.

Testing & quality295
A
analyzing-powershell-empire-artifacts
analyzing-powershell-empire-artifacts
mukul975 / anthropic-cybersecurity-skills

Detect PowerShell Empire post-exploitation framework artifacts in Windows Script Block Logging (Event ID 4104) and Module Logging (Event ID 4103), including the default launcher string, Base64-encoded WebClient/FromBase64String payloads, known module invocations (Invoke-Mimikatz, Invoke-Kerberoast), and staging URL patterns. Use when hunting for or confirming Empire C2 activity in Windows event logs

Security295
H
hunt-cache-poison
hunt-cache-poison
elementalsouls / claude-bughunter

Hunting skill for cache poison vulnerabilities. Built from 10 public bug bounty reports including X-Forwarded-Host poisoning, X-HTTP-Method-Override / GCS cache, reflected→stored XSS via cache, classic Omer-Gil Web Cache Deception, Cloudflare Cache Deception Armor bypass, session-token cache deception, Akamai hop-by-hop smuggling → server-side edge poisoning, and Kettle's 2024 path-normalization WCD against Cloudflare/Fastly/GCP. Host/X-Forwarded-Host injection that reaches app logic (reset-link poisoning, routing SSRF, OAuth issuer) is owned by hunt-host-header; this skill owns the case where the poisoned response is CACHED and served to other users. Use when hunting cache poisoning, Web Cache Deception, CDN-fronted apps.

Security295
M
meteor-security
meteor-security
meteor / agent-skills

Use when auditing or hardening a Meteor 3 application. Triggers on missing check() on method arguments, missing this.userId guards on publications, browser-policy CSP, DDPRateLimiter rules, oauth-encryption via Accounts.config oauthSecretKey, audit-argument-checks, allow/deny legacy patterns, BrowserPolicy.content.disallowInlineScripts, BrowserPolicy.framing.disallow. Use this skill when the user asks about hardening, asks about a security review, or asks about CSP for a third-party script (Stripe, Google Maps, fonts).

Security295
P
performing-csrf-attack-simulation
performing-csrf-attack-simulation
mukul975 / anthropic-cybersecurity-skills

Testing web applications for Cross-Site Request Forgery vulnerabilities

Security295
A
analyzing-office365-audit-logs-for-compromise
analyzing-office365-audit-logs-for-compromise
mukul975 / anthropic-cybersecurity-skills

Parse Office 365 Unified Audit Logs via Microsoft Graph API to detect

Security294
A
auth0-ionic-react
auth0-ionic-react
auth0 / agent-skills

Use when adding Auth0 login, logout, or deep linking to an Ionic React app with Capacitor. Integrates @auth0/auth0-react with Capacitor Browser and App plugins for native iOS/Android.

Security294
A
azure-rbac
azure-rbac
microsoftdocs / agent-skills

Expert knowledge for Azure Role-based access control development, including troubleshooting, best practices, decision-making, limits and quotas, security, configuration, integrations, and coding patterns. Use when defining custom roles, ABAC conditions, deny assignments, PIM-eligible roles, ARM/Bicep-based role assignments, or other Azure Role-based access control development tasks. Not for Azure Policy (use azure-policy), Azure Resource Manager (use azure-resource-manager), Azure Security (use azure-security), or Azure Lighthouse (use azure-lighthouse)

Security294
B
building-incident-response-playbook
building-incident-response-playbook
mukul975 / anthropic-cybersecurity-skills

Designs and documents structured incident response playbooks with step-by-step

Security294
C
conducting-mobile-app-penetration-test
conducting-mobile-app-penetration-test
mukul975 / anthropic-cybersecurity-skills

Conducts penetration testing of iOS and Android mobile applications

Security294
C
containers-internals
containers-internals
mohitmishra786 / low-level-dev-skills

Linux container internals skill covering namespaces, cgroups, and OCI. Use when understanding clone/unshare namespaces, cgroups v2 limits, overlayfs, runc, seccomp profiles, capabilities, or escape mitigations. Activates on queries about namespaces, cgroups, overlayfs, runc, seccomp-bpf, the OCI spec, or container escape

Cloud & DevOps294
F
fullstack-guardian
fullstack-guardian
farmage / opencode-skills

Builds security-focused full-stack web applications by implementing integrated frontend and backend components with layered security at every level. Covers the complete stack from database to UI, enforcing auth, input validation, output encoding, and parameterized queries across all layers. Use when implementing features across frontend and backend, building REST APIs with corresponding UI, connecting frontend components to backend endpoints, creating end-to-end data flows from database to UI, or implementing CRUD operations with UI forms. Distinct from frontend-only, backend-only, or API-only skills in that it simultaneously addresses all three perspectives—Frontend, Backend, and Security—within a single implementation workflow. Invoke for full-stack feature work, web app development, authenticated API routes with views, microservices, real-time features, monorepo architecture, or technology selection decisions.

Development294
H
hunt-business-logic
hunt-business-logic
elementalsouls / claude-bughunter

Hunting skill for business logic vulnerabilities. Built from 12 public bug bounty reports. Covers coupon-race-stacking (Instacart, Stripe, Reverb), negative-quantity-in-cart price tampering (Upserve, Eternal/Zomato), decimal/fraction price-field overflow (Shipt), client-side checkout amount trust on PayPal redirect (WordPress.org), price-per-unit mass-assignment (Krisp), and archived-price swap / cart-TOCTOU (Stripe). Use when hunting business logic — heavy emphasis on financial-impact-demonstrated cases

Security294
1681–1740 of 6,723

New to MCP?

From what the protocol is to installing your first server, these answers cover most first questions.

An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.