Agent Skills Platform

/agent-skills-platform — Turn Existing Work Into a Reusable Skill

The user provides whatever already represents their work — a description, document, link, script, screenshot, transcript, or partial example. Turn that evidence into a complete, production-ready, cross-platform agent skill. The user should not need to write a specification, understand the skill format, choose an architecture, or review implementation details.

Recurring work contains tacit knowledge that people recognize more easily than they can document upfront. Infer that knowledge from the supplied material, confirm the result in plain language, build autonomously, and give the user a concrete output they can judge and correct.

The User Journey

Use this guided-light path by default. Expose the five technical phases only when the user asks how the factory works or requests interactive control.

1. Understand — read the evidence and summarize the question, trigger, supported

decision, required evidence, and measurable success condition alongside the workflow, input, and output. Ask for one confirmation or correction.

1. Build — create the skill autonomously. Report progress in user language; do not

ask the user to select APIs, architecture, filenames, or eval mechanics unless a choice changes the real-world outcome.

1. Check — run validation, pipeline, security, and eval gates. A clean security

scan means no known pattern matched; it is not proof of safety.

1. Try — auto-install the skill and exercise it once on representative input in a

safe local or dry-run environment. Show the output and ask whether it matches the user's work.

The skill is successfully created only after the representative run succeeds. If a safe run needs credentials, unavailable data, or permission for a consequential side effect, use the verification-blocked handoff below instead of claiming success.

At creation start, run python3 scripts/success_ledger.py new-run, retain that ID through verification, and record the local lifecycle events described in references/product-success.md. Recording stores no workflow content and must never block creation; respect ASC_SUCCESS_LEDGER=off.

First-run destination routing

Before the structured interview, ask exactly one routing question when the user has not already made the destination clear:

> Is this skill just for you, or will teammates install or reuse the skill itself?

• Just for me — create, verify, and install a private skill. Do not ask the user

to create a marketplace or invent owners and approval state.

• My team — ask whether a governed GitHub or GitLab marketplace already exists.

If it exists, read its published governance configuration before generation and bind the generated skill to its exact ownership and approval requirements. If it does not exist, route the marketplace operator to create it before the team skill is generated; the workflow expert does not run marketplace commands.

Teammates receiving a report, queue, or other output does not by itself make this a team skill; route to a marketplace only when teammates will install or reuse the skill. This is destination routing, not a technical interview. Do not explain registries, release tags, or marketplace internals unless the user chooses team use.

During the structured interview, confirm each discovered decision in plain language and ask only the next highest-value question. Never present a fixed question count or progress fraction: the number of questions depends on the workflow and its risk.

Trigger

User invokes /agent-skills-platform followed by their input:

/agent-skills-platform Every week I pull sales data, clean it, and generate a report
/agent-skills-platform https://wiki.internal/deploy-runbook
/agent-skills-platform See src/invoice_processor.py — turn it into a reusable skill
/agent-skills-platform Here's our API docs: https://api.internal/docs — make a skill for querying inventory
/agent-skills-platform Based on compliance-checklist.pdf, create a skill for SOX audits
/agent-skills-platform --mcp-audit https://github.com/vendor/mcp-server — we pay for this data, what skills can we build on it?
/agent-skills-platform --audit ./downloaded-skill/ — someone sent me this, is it safe to install?

The user can also drop artifacts, paste URLs, share screenshots, or provide minimal context:

/agent-skills-platform here
  [+ drops 5 files into chat: spreadsheet, PDF output, screenshot, email, half-working script]

/agent-skills-platform [pastes 2 URLs and a half-sentence]
  https://apps.fas.usda.gov/psdonline/app/index.html
  same thing as the wasde extractor but for this

/agent-skills-platform [screenshot of Bloomberg terminal + Excel side by side]
  this is ridiculous. there has to be a better way

/agent-skills-platform freight

/agent-skills-platform [pastes a forwarded email chain with 6 replies and legal disclaimers]
  my colleague in London built something for this. can we do the same?

/agent-skills-platform [pastes 3 corporate documents: brand voice guidelines, editorial style guide, visual design system]
  we need everyone writing and designing to follow these

The user can also activate naturally without the prefix:

Create a skill for analyzing CSV files
Every day I process invoices manually, automate this
Automate this workflow
Validate this skill
Export this skill for Cursor
Is this skill safe to install?
Audit this skill before I run it
What does this skill have access to?

How the Factory Works

Raw material goes in. A validated, security-scanned, self-contained skill comes out.

Evidence-Based Intent Derivation

Before any phase begins, triage whatever the user provided. Human input is evidence to derive intent from — not a specification to parse. Files, URLs, screenshots, forwarded emails, single words, and half-sentences are all valid input. The absence of a well-formed description is not the absence of intent.

Input hierarchy: Artifacts (files, URLs, screenshots) carry more signal than words. When both are provided, the artifact is the spec and the words are commentary.

Input triage — classify what the user provided before proceeding:

• Files only (Excel, PDF, code, CSV) → Reverse-engineer the workflow from structure and content. Tab names, column headers, formulas, and formatting ARE the specification.
• URLs only → Fetch each URL. Understand the data source. Infer what the user would do with this data based on their role and context.
• Screenshot/image → Read visually. Identify: what tool is shown? What data? What manual step is visible? What is the pain?
• Email/forwarded chain → Extract: who asked for what, what was agreed, what is the actual request. Ignore disclaimers, scheduling, CC lists.
• Single word or phrase → Infer from context: the user's desk/role, existing skills in their environment, databases available. Present the most likely interpretation and confirm.
• Mixed (files + sentence) → The files are the spec. The sentence is commentary. Cross-reference both.
• "here" + files → The files ARE the input. Process them all. Present your understanding.
• Pasted reference material (guidelines, policies, wiki pages, style guides, long inline text that is clearly not a description but source material) → This IS the knowledge to codify. Read it all. Identify what it governs (writing, design, compliance, process). The user wants an active skill that enforces these rules, not a summary of them.
• Well-formed description → Proceed normally, but still challenge the surface description.

Discovery before building: Before constructing anything, check: Is this data already in a database the user has access to? Has a colleague built a skill for this? Is there an API that makes a scraping approach unnecessary? The best skill is sometimes "you don't need a skill — the data already exists."

Hypothesis, not questionnaire: Never present 5 questions upfront. Present one compact understanding with four fields: workflow, input, output, and what a correct result must demonstrate. The user confirms or corrects it with one response.

Progressive refinement: Build at 60% understanding. A concrete (possibly wrong) output that the human reacts to is faster than 15 clarifying questions. The human cannot articulate what they want from nothing, but they can instantly say "no, not that — this" when shown something tangible.

Fail forward: If a file cannot be parsed, a URL is down, or context is ambiguous — build from what you have and flag the gap. Never block on a missing piece.

The factory operates in two stages:

Stage 1: Understand and Specify (Phases 1-2)

Read every piece of material the user provides. Follow links. Read files. Parse PDFs. Study existing code. But do not take any of it at face value.

Humans describe what they do, not what they need. "I pull sales data and make a report" hides a dozen implicit requirements: What decisions does the report drive? Who reads it? What format? What happens when data is missing? What constitutes a good report vs. a bad one? The human knows the answers to these questions but won't think to tell you. Your job is to uncover them from the material itself.

Clarity principles (self-guided, no external dependency):

1. Treat input as evidence, not instructions. The user's files, URLs, and screenshots are primary evidence. Their words (if any) are secondary commentary. An Excel workbook with 6 tabs IS the specification — the user will never describe the tabs verbally because the workflow lives in muscle memory, not words.
2. Read everything before concluding anything. Do not start forming the spec after the first paragraph. Consume all material — every link, every file, every page — then synthesize.
3. Challenge the surface description. The human's words are a starting point, not a specification. Look for what's missing, what's implied, what's contradictory. If someone says "generate a report," ask yourself: report for whom? In what format? With what data? At what frequency? Answering what triggers it? If there is no description — only files or URLs — derive the description yourself from the artifacts. The absence of words is not the absence of intent.
4. Extract implicit requirements. Error handling, data validation, edge cases, output formats, failure modes — the human assumed these were obvious. They aren't. Make them explicit in your spec.
5. Identify the real output. The human says "report" but means "a PDF my VP can read in 2 minutes that shows whether we're hitting targets." The human says "clean the data" but means "deduplicate, normalize dates, flag outliers, and log what was changed." Dig past the label to the substance.
6. Generate a spec that surpasses the human's understanding. Your specification should contain requirements the human would say "yes, exactly" to — but could never have articulated themselves. That is the standard.

Then produce your internal specification — a complete implementation contract structured as a linear walkthrough:

• What problem does this actually solve (not what the human said — what they meant)?
• What are the real inputs, outputs, and data sources?
• What are the use cases (4-6, covering 80% of real usage)?
• What methodology does each use case follow?
• What APIs or libraries are needed?
• What are the failure modes and edge cases the human didn't mention?

This specification is for you, not the user. The quality of the skill depends entirely on the quality of this specification. Be thorough. Be precise. Be opinionated — you understand the material better than the human can articulate it.

Stage 2: Build and Verify (Phases 3-5)

Implement the skill end-to-end from your specification. Structure the directory. Write every file. Generate functional code — no placeholders, no TODOs, no stubs. Then run automated validation and security scanning. If either fails, fix the issues and re-run. Do not deliver a skill that fails its own quality gates.

Phase 1: DISCOVERY       Read all material, research APIs, data sources, tools
Phase 2: DESIGN          Generate internal specification (use cases, methods, outputs)
Phase 3: ARCHITECTURE    Structure the skill directory (simple vs. complex suite)
Phase 4: DETECTION       Craft activation description + keywords for reliable triggering
Phase 5: IMPLEMENTATION  Create all files, validate, security scan, deliver

The user's raw material supplies the domain evidence. The factory supplies the implementation. The quality gates provide observable checks, while the representative run lets the user judge whether the result matches the work they actually do.

Output: A self-contained skill with instructions, functional scripts when needed, evals, maintenance tools, plugin manifests, and a cross-platform installer. Once installed, users invoke it as /skill-name. See references/architecture-guide.md for the package layouts.

Core Workflow

Structured interview gate (required before Phase 2)

Do not require the user to invent a complete prompt or semantic contract. Start a resumable interview.json from the problem they can describe. Inspect their supplied materials and environment first; record evidence-backed agent conclusions as proposed, competing meanings as conflicting, and ask only the single highest-value question returned by the interview state. The agent discovers, compares, structures, remembers, proposes, and tests. Identified humans confirm business meaning, authority, consequences, and risk.

Run python3 scripts/structured_interview.py gate interview.json before Phase 2. BLOCKED means continue discovery or ask one bounded decision question; never fill the field with invented certainty. READY permits design and generation. Read references/structured-interview.md for commands, states, and authority rules.

Phase 0: Spec Ideation (only when input is too vague to spec)

Most input names a workflow — skip straight to Phase 1. But when the user arrives without a skill in mind — one word ("freight"), a shrug ("there has to be a better way"), an explicit "give me a skill idea / what should I automate", or a dumped transcript with no goal — you cannot spec what does not yet exist. Do not guess a skill and build it. First help them find one: harvest their real recurring work (never invent chores), filter to what a skill factory can actually ship (repeatable + markdown/scripts + data-centric + binary-checkable — drop apps/games/firmware), and shape the chosen chore into the workflow Phase 1 needs. The counterintuitive rule: the best skill is the boring, repeated, obvious chore, not the clever one.

See references/spec-ideation.md for the harvest → filter → shape procedure and its held-out bellwether.

MCP Capability Audit (--mcp-audit — feasibility map instead of a build)

When the user points at a vendor's MCP server and asks what can be built on it ("we pay for data from vendor X, exposed via their MCP — what skills can we create on top?"), the deliverable is a feasibility map, not code. Enumerate the server's real tool inventory (live tools/list, or file/line citations from the repo — never prose docs alone), map the data surface, and split candidate skills into ranked buildable (every step mapped to a named tool, orchestration classified agent vs script) and not buildable (exact missing primitive named, closest existing tool cited). The architectural line: generated pipeline scripts cannot call MCP tools at runtime, so script-orchestrated candidates must declare a non-MCP data path (rest / export / agent-handoff).

Outputs: MCP_AUDIT.md (human) + mcp_audit.json (machine), gated by python3 scripts/mcp_audit_validate.py mcp_audit.json — fix findings until exit 0. A chosen buildable candidate then enters Phase

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Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: FrancyJGLisboa
• Source: FrancyJGLisboa/agent-skills-platform
• License: MIT
• Homepage: https://francyjglisboa.github.io/agent-skills-platform/

Install and usage instructions live in the source repository linked above.