Claude skills vs. plugins vs. MCP connectors: A simple guide

If you’ve opened Claude’s Customize settings and weren’t certain whether a project called for a Skill, a connector, or a Plugin, you’re not alone.

The names audio similar, and group frequently use them interchangeably in informal conversation equal although they do distinct jobs. This guide walks through what all one really is, how they relate, and which one fits a stated workflow, using a genuine example alongside the way alternatively of a hypothetical one.

TL;DR: Skills instruct Claude a procedure, MCP connectors provision it authorized admission to an exterior tool or data source, and Plugins bundle the two together so a squad can instal everything at once.

Table of Contents

• What are Claude skills, plugins, and MCP connectors?
• How do these three layers fit together?
• Which should I use: a skill, plugin, or MCP connector?
• What does a blended workflow appearance like?
• What are examples for marketing, sales, and assistance Teams?
• How do I set up and govern these layers?
• Frequently Asked Questions About Claude Skills, Plugins, and MCP Connector

• Solve alongside the correct tool.

What are Claude skills, plugins, and MCP connectors?

The easiest way to keep these three direct is to distinct admission from procedure from distribution. Each tier answers a distinct question.

MCP connectors are access.

A connector links Claude to an exterior assistance — your files, your calendar, an matter tracker, a CRM — through a live association called an MCP server, which the assistance itself runs so Claude can attain it. Once you rotate a connector on, Claude can peruse from that assistance and obtain act in it, inner your existing permissions.

Skills are procedure.

A accomplishment is a set of written instructions, sometimes alongside scripts and citation records attached, that Claude loads whenever your petition matches what the accomplishment covers. A accomplishment teaches the how: your team’s study format, your assessment checklist, the brand sound you continually desire applied. A accomplishment can inform Claude how to use a connector’s data, but it can’t attain a live assistance on its own. That’s what the connector is for.

Plugins are distribution.

A plugin bundles skills, MCP connectors, commands, and sub-agents into a sole bundle that installs formerly and can be shared alongside a entire team, alternatively of asking all individual to add all part separately.

If you desire a broader primer on how plugins activity as a category of software, What are plugins? covers the idea exterior of Claude specifically. Inside Claude’s ecosystem, a plugin can clasp any mix of the pieces above, and installing it adds everything in one step.

A abbreviated glossary, since these conditions get thrown about loosely:

• Skill: written instructions Claude follows whenever a project matches the skill’s description.
• Plugin: an installable bundle of skills, connectors, commands, and sub-agents.
• MCP (Model Context Protocol): the open protocol that lets Claude conversation to exterior tools and services in the archetypal place.
• MCP connector: one live connection, built on MCP, between Claude and a particular service.
• Sub-agent: a expert Claude can assign part of a project to; this lone runs in Cowork and Claude Code, not in regular chat.

How do these three layers fit together?

Picture a petition moving through Claude in three stages: a accomplishment can form how Claude approaches the task, a connector lets Claude attain exterior the conversation to get or alter genuine data, and a plugin is the optional wrap that ships a accomplishment and a connector together as one package.

None of the three sits “above” the others in a power ranking.

A connector without a accomplishment motionless plant fine, as Claude volition merely use its own judgement concerning how to expression requests to your CRM.

A accomplishment without a connector additionally plant fine — it fair can’t contact live data, lone any you paste into the conversation or any alternatively Claude already has admission to.

A plugin is lone helpful whenever you really desire multiple of these installed and shared as a unit; a sole accomplishment or a sole connector doesn’t need one.

Which should I use: a skill, plugin, or MCP connector?

Match the issue to the layer, not the another way around:

• Use an MCP connector whenever you need live admission to an exterior tool or data source. If the project involves item Claude can’t see fair by study the conversation — your calendar, your ticketing system, your CRM — a connector is the lone tier that reaches it.
• Use a accomplishment whenever you need a repeatable procedure, a template, or a brand sound applied consistently. Anything you discover yourself correcting Claude on the identical way all period — a study format, a QA checklist, a spirit guide — is a fine candidate.
• Use a plugin whenever you need a team-ready bundle that another group can instal in one step. Once you’ve got a accomplishment and a connector that activity fine together, packaging them into a plugin method your squad doesn’t have to hunt downward and configure all part separately.

Combinations are common, and frequently the correct call. A connector supplies the data, a accomplishment decides what to do alongside it, and a plugin is how the two attain everyone alternatively on the squad at once.

What does a blended workflow appearance like?

Take a weekly pipeline review, for example. On its own, none of the three layers gets you the complete workflow:

A connector supplies the pipeline context. With the HubSpot Claude connector turned on, Claude can drag agreement stages, latest activity, and involvement former direct from HubSpot, scoped to any a stated person is permitted to see in HubSpot already.

A accomplishment defines the assessment format. A accomplishment can inform Claude exactly how your squad likes a pipeline assessment organized — which sectors matter, how to emblem stalled deals, what counts as “needs attention” — so the output looks the identical all week despite of who asks for it.

A plugin packages it for the team. Bundling that accomplishment alongside the connector into a plugin method a revenue director installs one thing, fairly than separately connecting HubSpot and afterward hunting downward the correct skill, and rolling it out to a entire squad is a sole instal alternatively of five.

This form is value construction toward since most teams end up connecting to additional than one AI tool at once. HubSpot’s own changelog announcing the connector noted that complete fractional of its customers already use multiple LLMs to get activity done, which is part of why having your CRM environment accessible consistently, despite of which tier is doing the work, matters additional than picking a sole “winning” tool.

What are examples for marketing, sales, and assistance Teams?

Marketing

• Access: a connector supplying run achievement and content-analytics context.
• Procedure: a Skill that applies your team’s brand sound to any draft, consistently.
• Distribution: a Plugin that packages the two so all author on the squad gets the identical setup.
• Best for: teams that create a elevated quantity of on-brand satisfied and desire consistency without a manual manner assessment all time.

Sales

• Access: a connector supplying document and pipeline context.
• Procedure: a Skill that defines a norm follow-up sequence or note-taking format following a call.
• Distribution: a Plugin bundled as a “rep toolkit” so new hires get the identical setup on day one.
• Best for: teams onboarding reps regularly, anywhere you’d alternatively have to explain the identical CRM habits to all new person.

Service

• Access: a connector supplying ticket and knowledge-base context.
• Procedure: a Skill that defines how tickets get triaged and routed.
• Distribution: a Plugin that packages the triage accomplishment alongside the ticket connector as an delegate toolkit.
• Best for: teams that site a elevated ticket quantity and need accordant triage despite of who’s on shift.

Pro tip: Start alongside the smallest tier that solves the genuine problem. If a sole accomplishment already gets the format right, don’t attain for a plugin fair since it feels additional “official.” Package things into a plugin formerly you’ve confirmed the accomplishment and connector really activity fine together and additional than one individual needs them.

How do I set up and govern these layers?

Setup and governance are value covering together, since the controls at all phase transport complete into the next.

Start alongside one repeatable project fairly than trying to remain up your entire stack at once. Pick a procedure you already do by hand all week, build or discover the accomplishment for it, nexus the data origin it needs, and see whether the blend really saves period before you bundle item for a wider team.

Test the accomplishment before anyone relies on it.

Anthropic’s own skill-creator accomplishment runs a accomplishment against test prompts you define and reports rear so you can revise the clarification or instructions before rolling it out.

Authorize connectors deliberately.

When you add an MCP connector, you assessment and endorse the admission it’s requesting, and you can set tool-level permissions afterward: Always Allow, Needs Approval, or Blocked, for idiosyncratic actions fairly than the connector as a whole.

Verify plugins before installing from exterior the directory.

Anthropic runs automated validation and a safety scan on all plugin type submitted to its community directory, affirmative a individual assessment before a new listing goes live. That assessment doesn’t broaden to a plugin person uploads from an unofficial market URL or a local file, so lone add those from sources you really trust.

Pilot before you rotate out organization-wide.

On Team and Enterprise plans, you can portion a plugin alongside a fistful of particular group first, verify it plant the way you expect, and lone afterward set it to instal by default or create it required for everyone.

Set permissions deliberately, not fair once.

The HubSpot Claude connector, for instance, respects any permissions already be in HubSpot. A rep lone sees the pipeline data they’re already allowed to see in HubSpot itself, so existing HubSpot permissions constrain the environment accessible through the connector fairly than the connector introducing a distinct approval system.

Keep versioning and rollback in mind.

Organization admins on Team and Enterprise plans can see a plugin’s complete type former and revert to an before type if a new one causes problems, without losing any of the type former in the process.

Know anywhere audit logs live if you need them.

On Enterprise plans, Organization Owners can export audit log data from Organization settings and Data and Privacy, and the identical data is accessible programmatically through Anthropic’s Compliance API for teams that need to nourish it into their own compliance tooling.

None of this amounts to a safety or lawful guarantee. It’s a clarification of the controls that be today, and you should measure them against your own team’s requirements fairly than treating any of it as a compliance sign-off.

Frequently Asked Questions About Claude Skills, Plugins, and MCP Connectors

Do I need a developer to use Skills, Plugins, or MCP connectors?

No, not to use ones that already exist. Adding a connector from Anthropic’s directory or installing a plugin is a point-and-click procedure from Claude’s Customize settings. Writing your own accomplishment from scratch is additionally mostly penning plain instructions in a content document — no code required unless you desire to add an optional script. Building your own MCP connector or submitting a plugin to the community directory is the part that takes engineering work.

What is the difference between Claude Skills and MCP in one sentence?

A Skill teaches Claude how to do a task; MCP is the protocol that lets Claude attain exterior tools and data to get the data it needs to do that project in the archetypal place.

When should I standardize a procedure as a Plugin fairly than a sole Skill?

Once additional than one individual needs the identical skill, or the identical accomplishment needs to journey together alongside a particular connector, bundle it as a plugin. A sole accomplishment is fine as lengthy as you’re the lone one using it and it doesn’t depend on a connector person alternatively motionless has to set up separately.

How do Claude Skills difference alongside tools or slash commands?

A “tool,” in Claude’s terms, is normally item a connector exposes — a particular act Claude can obtain in an exterior service. A slash command is a named shortcut, frequently bundled inner a plugin, that runs a particular accomplishment or act whenever you category it immediately fairly than describing the project in plain language. A accomplishment is the instructions themselves; commands and tools are two distinct ways of triggering something.

Is there an example of a CRM-grade MCP connector I can try?

Yes. The HubSpot connector for Claude is a operating example you can instal today. It requires an energetic HubSpot document on any tier and a paid Anthropic scheme (Pro, Max, Team, or Enterprise), and it can create and update records akin contacts, companies, deals, and tickets, although it doesn’t delete item on any object.

Solve alongside the correct tool.

Skills, plugins, and MCP connectors aren’t competing tiers of the identical feature. They’re three distinct jobs, and the workflows that really rod lean to use additional than one at a time. If you desire to see the admission tier in act alongside a genuine CRM fairly than a hypothetical one, the HubSpot connector for Claude is a sensible location to start, and it pairs naturally alongside any accomplishment or plugin your squad builds about it.