sta SKILL.md skillA

sta from hdl-tools/digital-chip-design-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add hdl-tools/digital-chip-design-agents/sta@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
hdl-tools/digital-chip-design-agents
Path
plugins/sta/skills/sta/SKILL.md
Versions recorded
6
Latest version
v1.0.0, committed Oct 2, 2026
First version recorded
Apr 14, 2026
Size
12,456 bytes
Repository stars
220
License
MIT

Static timing analysis — multi-corner constraint validation, setup and hold analysis, timing exception review, and ECO guidance for closure. Use when running timing analysis on a design, reviewing timing violations, guiding ECO fixes, or performing timing sign-off for tape-out.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Skill: Static Timing Analysis (STA)

## Invocation

When this skill is loaded and a user presents a timing analysis task, **do not
execute stages directly**. Immediately spawn the
`digital-chip-design-agents:sta-orchestrator` agent and pass the full user
request and any available context to it. The orchestrator enforces the stage
sequence, loop-back rules, and sign-off criteria defined below.

Use the domain rules in this file only when the orchestrator reads this skill
mid-flow for stage-specific guidance, or when the user asks a targeted reference
question rather than requesting a full flow execution.

## Pre-run Context

Before executing or advising on **any** stage, read the following files if they exist:

1. `memory/sta/knowledge.md` — known failure patterns, successful tool flags, PDK/tool quirks.
   Incorporate its guidance into every stage decision. If absent, proceed without it.
2. `memory/sta/run_state.md` — current run identity (`run_id`, `design_name`, `tool`,
   `last_stage`). Use this to resume correctly after interruption. If absent, a new run
   is starting; the orchestrator will create this file before the first stage.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add hdl-tools/digital-chip-design-agents/sta@sha256:8b05f0feeb1396f9

The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_vjj7smfq3nblmbol.svg)](https://markdownregistry.com/a/art_vjj7smfq3nblmbol)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 6 versions of this file, between Apr 14, 2026 and Oct 2, 2026, about one every 34 days.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-10-02 e243902 12,456 BA view · diff
v1.0.02026-05-31 bdc988c 12,417 BA view · diff
v1.0.02026-05-31 9bdd652 12,412 BA view · diff
v1.0.02026-04-25 40d51f7 10,589 BA view · diff
v1.0.02026-04-17 ac5c224 9,043 BA view · diff
v1.0.02026-04-14 fd9fb28 8,546 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12456 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

hdl-tools/digital-chip-design-agents · 220 stars · license MIT · pushed 2026-10-19 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_vjj7smfq3nblmbol
GET https://markdownregistry.com/api/v1/resolve?ref=hdl-tools/digital-chip-design-agents/sta
GET https://markdownregistry.com/api/v1/blob/8b05f0feeb1396f9e112057ba897679c18a51ad69be4a7df0b7a9d87e156edb2

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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