AI Skill Report Card
Designing Crochet Projects
Quick Start14 / 15
To design or explain a crochet pattern, establish these four parameters first:
- Stitch base: chain (ch), slip stitch (sl st), single crochet (sc/US = dc/UK), double crochet (dc/US = tr/UK), etc.
- Terminology system: US or UK — they use the same names for different stitches, so always state which system you're using up front.
- Hook/yarn pairing: match hook size to yarn weight (see table below).
- Construction method: worked in rows (flat), in the round (amigurumi, doilies, granny squares), or as a specialty technique (Tunisian, filet, tapestry, broomstick, hairpin lace).
Example minimal pattern instruction:
US terms, worsted weight yarn, 5.0mm (H/8) hook
Ch 21.
Row 1: Sc in 2nd ch from hook and each ch across. (20 sc)
Row 2: Ch 1, turn. Sc in each st across. (20 sc)
Repeat Row 2 until piece measures desired length.
Recommendation▾
Add a third example showing a troubleshooting scenario (e.g., diagnosing uneven edges or curling fabric) to demonstrate the 'troubleshooting stitches' use case mentioned in the description.
Workflow14 / 15
Progress:
- Step 1: Clarify terminology system (US/UK) and confirm with the requester if ambiguous
- Step 2: Identify the construction type (flat rows, in-the-round, motif-based, specialty technique)
- Step 3: Select stitch(es) appropriate to desired fabric density/drape
- Step 4: Recommend hook size and yarn weight pairing
- Step 5: Write pattern using standard abbreviations, including stitch counts per row/round
- Step 6: Note any special techniques required (increases, decreases, joining, color changes)
- Step 7: Provide gauge/swatch guidance if project size matters
- Step 8: Flag common errors specific to the technique used
Terminology conversion (critical — always verify)
| US Term | UK Term |
|---|---|
| Slip stitch (sl st) | Slip stitch (sl st) |
| Single crochet (sc) | Double crochet (dc) |
| Half double crochet (hdc) | Half treble (htr) |
| Double crochet (dc) | Treble crochet (tr) |
| Treble crochet (tr) | Double treble (dtr) |
| Double treble (dtr) | Triple treble (trtr) |
This mismatch is the single most common source of confusion — a pattern labeled "dc" means completely different stitches depending on the system.
Hook size / yarn weight defaults
| Yarn Weight | Hook Size (US) | Hook Size (mm) |
|---|---|---|
| Lace (0) | Steel 6-8 | 1.4–1.6mm |
| Fingering/Sock (1) | B-1 to E-4 | 2.25–3.5mm |
| Sport/DK (3) | E-4 to 7 | 3.5–4.5mm |
| Worsted (4) | H-8 to I-9 | 5.0–5.5mm |
| Bulky (5) | K-10.5 to M-13 | 6.5–9.0mm |
| Super Bulky (6) | N-15 and up | 10mm+ |
Recommendation▾
Include a brief example of UK-to-US pattern conversion in action (not just the reference table) to show the workflow being applied end-to-end.
Examples16 / 20
Example 1: Input: "I want to make a granny square blanket, what stitches do I need?" Output:
Granny squares are worked in the round using double crochet (US)/treble (UK)
grouped in clusters of 3, separated by chain-1 or chain-2 spaces, with a
slip stitch join at the end of each round. Standard 4-color rotation:
Round 1: Magic ring, ch 3 (counts as first dc), 2 dc in ring, ch 2,
[3 dc, ch 2] 3 times in ring, join with sl st to top of ch 3. (4 groups of 3-dc)
Round 2: Join new color in any ch-2 space, ch 3, 2 dc, ch 2, 3 dc in same
space (corner made), *ch 1, (3 dc, ch 2, 3 dc) in next ch-2 space; repeat
from * around, ch 1, join.
Continue adding rounds, increasing corner clusters, changing color each round if desired.
Example 2: Input: "What's the difference between Tunisian crochet and regular crochet?" Output: "Tunisian crochet (afghan stitch) uses a longer hook with a stopper at one end and keeps multiple loops on the hook simultaneously across a 'forward pass' (picking up loops) and 'return pass' (working them off) — unlike standard crochet, which completes each stitch fully before starting the next. This produces a denser, woven-like fabric, and rows are not turned, so the right side always faces the worker."
Recommendation▾
The specialty techniques (filet, tapestry, Irish lace, hairpin lace, broomstick lace) are named in the description but only Tunisian is exemplified — add at least one more concrete example or brief notes for these to avoid feeling like unmet promises.
Best Practices
- Always state the terminology system (US/UK) at the start of any pattern or instruction — never assume.
- Include running stitch counts in parentheses after each row/round so mistakes are caught early.
- Recommend a gauge swatch before sizing garments; hook size alone doesn't guarantee gauge due to tension variance.
- When suggesting yarn substitutions, match both weight and fiber behavior (e.g., don't substitute inelastic cotton for a pattern designed around springy wool).
- For amigurumi/toys, always suggest sc worked in continuous spiral (no join) for a seamless surface, using a stitch marker to track round starts.
- For historical or cultural questions, distinguish crochet clearly from nålebinding and knitting — they're frequently conflated in older sources.
Common Pitfalls
- Don't mix US and UK terms within the same pattern — this is the most frequent cause of failed projects.
- Don't recommend a hook size without also specifying yarn weight; the two are interdependent.
- Don't assume "double crochet" means the same stitch across all sources — always confirm system first.
- Don't ignore turning chains: they count as a stitch in taller stitches (dc, tr) but not in sc — omitting this skews stitch counts.
- Don't confuse slip-stitch crochet (dense, inelastic, used for joins/edging) with single crochet (basic fabric stitch) — an error common even in historical texts.
- Avoid recommending non-continuous joined rounds for amigurumi; the seam/join is visually distracting and weakens the fabric at that point.