OutSystems Mentor Agent Skill

Writing effective prompts for OutSystems Mentor (the AI that generates and modifies real OutSystems apps) and driving the mentor_start MCP…

Context cost
7.9k tokensestimated from the bundle, loaded when it triggers
Bundle
4 files · 31.7 kBtext throughout, nothing executable
Licence
MITthe author’s own terms
Last change
—v1.0
Servers it uses
Noneruns standalone

What it does

Writing effective prompts for OutSystems Mentor (the AI that generates and modifies real OutSystems apps) and driving the mentor_start MCP tool correctly when the OutSystems MCP is connected. Use whenever the developer wants to push validated Flowmo work (schema, logic, screens) to a real OutSystems Developer Cloud app, asks how to phrase a Mentor prompt, is resuming/troubleshooting a mentor_start run, or wants to run a curated Mentor task (quality/security/performance/accessibility review, test generation, doc-gap fill, refactor suggestions, model migration, demo data, demo readiness — see…

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

mcpproductivitywriting

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md7.2 kB · preview
--- name: outsystems-mentor compatibility: Requires a live OutSystems MCP connection (mcp__outsystems__* tools) to actually call mentor_start; the prompting guidance applies regardless. metadata: version: "1.0" source: "OutSystems mentor_start tool schema and public OutSystems documentation (facts/constraints only, not copied text — see references)" ---
21# OutSystems Mentor Skill
22
23## Two different things named "Mentor"
24
25Keep these separate — they share an underlying AI but have different inputs and mechanics:
26
271. **The product**: Mentor Web (in ODC Portal) and Mentor Studio (inside ODC Studio) — a human types a prompt into a chat panel in the IDE/Portal UI.
282. **The MCP tool**: mentor_start, part of the OutSystems MCP (mcp__outsystems__*, or outsystems_* depending on harness) — an AI agent calls it programmatically with a prompt string, no human typing into a UI at all.
29
30**Check availability before assuming the tool exists**: look for mcp__outsystems__* tools in your own tool list, or ask the user to run /mcp and confirm an outsystems server is connected. It's early access, not every tenant has it, and it can change over time. If it's not there, the prompting guidance below still applies to whatever interface is available (a human pasting your suggested prompt into Mentor Web/Studio directly) — don't block on MCP access.
31
32**If a previously-working connection breaks** (/mcp reports something like Failed to reconnect to outsystems, or a tool call returns Bearer token rejected: expired): the underlying relay (commonly outsystems-mcp-relay) caches its OAuth token under ~/.mcp-auth/, and the harness's own reconnect attempt reuses that cache — if the cached token itself is bad, reconnect keeps failing silently with no login prompt surfaced anywhere in the harness UI. Fix it by running the relay yourself, once, with --force:
33
34```bash
35outsystems-mcp-relay <remote-url> --force
36```
37
38Keep its stdin open past the process launch (e.g. via a named pipe) rather than piping in nothing — closing stdin immediately makes it exit before it does anything. Held open, it prints a fresh authorization URL and blocks waiting for the OAuth callback on a local port; open that URL yourself (or hand it to the user) and complete the login. The refreshed token lands in the same ~/.mcp-auth/ cache the harness's own connection reads, so a subsequent /mcp reconnect (or whatever the harness's reconnect mechanism is) picks it up without any separate login flow — no need to touch the harness's connection directly.
39
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md983 words
Files4
LicenceMIT
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈290
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
7,635
on trigger
The instruction body and 3 supporting files, read only when the skill fires.
4.0%
of a 200k window
Ten skills this size would take about 40% of the window before you open a file.
050k100k150k200k context window

7.9k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

4 files, 31.7 kB on disk. A bundle is text throughout: the instructions the model reads, plus the templates it fills in.

  • SKILL.md7.2 kB
  • references/mentor-start-api.md12.3 kB
  • references/prompt-patterns.md2.9 kB
  • references/task-prompts.md9.3 kB
What is not in it

No dependencies and nothing executable: a skill is text the agent reads, so the bundle is 4 files you can review in full before installing. The MIT licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# OutSystems Mentor · 7.9k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/outsystems-mentor/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/outsystems-mentor" ] && { [ ! -e .claude/skills/outsystems-mentor ] || { mv .claude/skills/outsystems-mentor "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/outsystems-mentor" .claude/skills/ && echo "Installed .claude/skills/outsystems-mentor"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add izambasiron/outsystems-mentor

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/outsystems-mentor/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/outsystems-mentor/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/outsystems-mentor" ] && { [ ! -e ~/.claude/skills/outsystems-mentor ] || { mv ~/.claude/skills/outsystems-mentor "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/outsystems-mentor" ~/.claude/skills/ && echo "Installed ~/.claude/skills/outsystems-mentor" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/outsystems-mentor/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Version1.0
Publishedno release date on file
PriceFree
Referenceizambasiron/outsystems-mentor

Versions

v1.0 is what is on the shelf; no release here carries a date. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

v1.0
  • No earlier releases have been published to the marketplace.
Pinning

The install command always fetches the release that is current the day you run it — v1.0 today — and cannot ask for an earlier one. The copy on your disk does not change until you run it again.

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