60-second orientation on an industry spec — title, scope, key requirements, who invokes it, common pitfalls, verification trail, and related specs. For triage and starting research; not a substitute for the actual standard.

`spec-summary`

AI skill that gives a 60-second orientation on an industry specification — AMS, ASTM, MIL-STD, ASME, ISO, AS, NAS, BAC, QQ-, Nadcap AC7XXX, etc. Returns title, scope, key requirements (3–6 bullets), who typically invokes it, common pitfalls, verification trail (what records the shop must keep), and related specs the user might confuse it with.

Use case

A drawing arrives with a callout like HEAT TREAT PER AMS 2759/3 and MARK PER MIL-STD-130N. The estimator, programmer, or QE needs a quick answer:

What does it actually require?
Are we approved to do this in-house, or does it need to go outside?
What certs do we need on the cert package?
Does this trigger a Nadcap audit need?

A senior QE knows most of this from memory. Newer staff need a reference, and even seniors hit specs they haven't seen in a few years. Looking up the actual SAE/ASTM document takes 10–30 minutes (search, login, download, skim). This skill collapses that to one Slack message.

It is NOT a replacement for the standard. The output explicitly flags that revision details may be outdated and that exact temperatures, durations, and quantitative requirements should be verified against the current document.

Invocation

Messaging: @spec-summary AMS 2750
With section: @spec-summary AMS 2750 §3.5.4
With context: @spec-summary what does QQ-P-416 Type II Class 2 mean on this drawing
REST: POST /api/skill/run with {"name": "spec-summary", "input": "AMS 2750"}
Job task: a skill task inside a larger automation (e.g., the rfq-triage flow could enrich the QuoteLog row with a one-line summary of each invoked spec)

Sample output

User: @spec-summary AMS 2750

Skill:

Spec
  AMS 2750 — Pyrometry. Current to my training: Rev F (March 2020). Always
  verify against SAE's current published rev.

Issuing body
  SAE International, Aerospace Materials Division.

Scope
  Establishes pyrometric requirements for thermal-processing equipment
  used in aerospace heat treatment — calibration, accuracy, uniformity,
  instrumentation, and frequency of system tests. Does NOT specify
  metallurgical recipes (those are in AMS 2759/X) and does NOT cover
  non-thermal processes.

Key requirements
  - Furnace System Class assignment (Class 1–6 with progressively tighter
    accuracy and uniformity requirements)
  - Thermocouple type, calibration, and replacement schedules by use
    (test, control, load)
  - System Accuracy Test (SAT) at defined intervals
  - Temperature Uniformity Survey (TUS) at defined intervals with
    survey thermocouple counts based on furnace volume
  - Instrument calibration intervals and recordkeeping
  - Pyrometer accuracy classes for instrument controllers

Who invokes it
  All aerospace heat treatment per AMS 2759/X invokes AMS 2750 by reference.
  Required by Boeing (BAC 5602), Lockheed Martin, GE Aviation, Pratt &
  Whitney, Rolls-Royce, Spirit, and most aerospace primes' QMS programs.

Common pitfalls
  - TUS survey thermocouple count under-specified for furnace size — a
    "we always use 9" mindset fails when the furnace is large.
  - Calibration interval miscount: starts at the day of last cal, not
    the day of last test.
  - Load thermocouple use exceeding the per-use limit (often 3 uses for
    Type N below 1500°F).

Verification trail
  - SAT records (date, results, signatures)
  - TUS records (date, layout, all probe readings, pass/fail by zone)
  - Instrument calibration certs (NIST traceable)
  - Thermocouple lot traceability and replacement log
  - Operator qualification records

Related specs
  - AMS 2759/X — the metallurgical recipes that invoke 2750 for pyrometry
  - Nadcap AC7102/8 — the audit standard for AMS 2750 compliance
  - SAE AMS-H-6875 — older legacy spec for heat treatment of steels,
    largely superseded by AMS 2759 family

Strengths and weaknesses

Good at	Bad at
Common aerospace specs (AMS, ASTM, MIL-STD, AS)	Customer-proprietary specs (Boeing BAC, Spirit, Lockheed) — coverage is patchier
Pointing at the right Nadcap audit standard	The latest revision details — your training cutoff may be behind
Distinguishing superseded vs. current spec families	ISO/EN specs in detail; better for ASME/SAE/ASTM
Identifying verification trail requirements	Reproducing exact pass/fail numerical thresholds (don't try; that's what the standard is for)

Customization

Add your shop's approved-source list — if your shop has standing approvals at specific vendors for specific specs, add a section to SKILL.md so the skill can mention them.
House-specific specs — if you have customer-prime specs that travel with most jobs (e.g., Boeing BAC 5602 with every AMS 2750 callout), add them to a "related specs" hint section.
Quote-tier flagging — combine with quote-estimator: any callout the spec-summary flags as Nadcap-required adds complexity to the quote.

Pairs with

gdt-explainer — for the geometric requirements; specs are for the process/material requirements
quote-estimator — outside-process line items are spec-driven; this skill clarifies which spec drives which OSP cost
rfq-triage — extracts spec callouts from the RFQ; this skill is the next step to understand what each one means
coc-generator — Form 2 of an AS9102 lists each spec; this skill helps the QE confirm what each one requires before signing the CoC

Source

See SKILL.md.