Skill: ivangdavila/coin-identifier (version 1.0.0)

--- name: Coin Identifier slug: coin-identifier version: 1.0.0 homepage: https://clawic.com/skills/coin-identifier description: "Identify coins from photos using evidence-based visual checks, ranked candidates, mint-mark reasoning, and a reusable local catalog." changelog: "Initial release with ranked photo identification, evidence-based follow-up, and optional local coin memory." metadata: {"clawdbot":{"emoji":"C","requires":{"bins":[]},"os":["linux","darwin","win32"],"configPaths":["~/coin-identifier/"]}} --- ## When to Use Use when the user wants to identify a coin from one or more photos, narrow down similar issues, log a collection piece, or separate likely type from later grading or pricing work. ## Architecture Memory lives in `~/coin-identifier/`. If `~/coin-identifier/` does not exist, run `setup.md`. See `memory-template.md` for structure. ```text ~/coin-identifier/ ├── memory.md ├── identifications/ │ └── YYYY-MM/ │ └── {entry-id}.md └── exports/ ``` ## Quick Reference | Topic | File | |-------|------| | Setup guide | `setup.md` | | Memory template | `memory-template.md` | | Coin evidence checklist | `evidence-guide.md` | ## Scope This skill ONLY: - identifies coins from visible evidence in user-supplied images - returns ranked candidates with explicit confidence and missing evidence - asks for the next best photo or measurement when the evidence is incomplete - stores local identification notes only if the user approves This skill NEVER: - guarantee authenticity, grade, mint error status, metal purity, or market value from photos alone - recommend cleaning, polishing, or altering a coin - upload images or coin data to external services ## Security & Privacy **Data stored locally if approved by the user:** - activation and response preferences in `~/coin-identifier/memory.md` - one note per saved identification in `~/coin-identifier/identifications/` **This skill does NOT:** - make network requests - claim professional grading or authentication - write local files without user approval ## Core Rules ### 1. Clear the photo gate before naming a coin - Check subject isolation, glare, blur, crop, orientation, and whether the obverse, reverse, or edge are missing. - If the coin is angled, reflective, inside a sleeve, or mixed with other coins, ask for a tighter straight-on view first. ### 2. Return ranked candidates with confidence, not one blind guess - Give one to three candidates with confidence bands: High 85-95, Medium 60-84, Low 35-59. - For each candidate, cite the visible evidence and the missing evidence. - If the signal is weak, say the result is an unresolved shortlist instead of pretending certainty. ### 3. Use coin evidence in a fixed order - Open `evidence-guide.md` before deciding. - Work from country or script, portrait or emblem, denomination, date, mint mark, metal color, shape, rim or edge, then commemorative cues. - Keep obverse, reverse, and edge evidence separate. ### 4. Ask for the next best view, not generic more photos - Prefer straight obverse, straight reverse, edge, mint-mark crop, and scale or weight. - Explain which missing feature would separate candidate A from candidate B. ### 5. Separate identification from value, grading, and authenticity - Photo identification can narrow the type and likely issue without proving grade, rarity, or authenticity. - If the user wants value or authenticity, treat identification as step one and keep the rest provisional. ### 6. Keep memory useful and lightweight - Save only durable preferences and approved identification notes. - One saved entry should record date, coin label, best match, confidence, evidence, and unresolved questions. - Do not write files unless the user approves local storage. ### 7. Say what could change the answer - Highlight wear, glare, missing edge data, foreign-script ambiguity, and similar commemoratives when they limit certainty. - Update the shortlist immediately if a better image or measurement changes the balance. ## Common Traps - Guessing from one reflective angled photo -> dates, mint marks, and legends disappear. - Treating any silver-colored coin as silver bullion -> composition and coin type get conflated. - Calling a commemorative theme the country or denomination -> wrong catalog family. - Jumping from identification to market value -> grade, authenticity, and demand remain unverified. ## Related Skills Install with `clawhub install <slug>` if user confirms: - `image` - inspect and optimize photos before identification - `image-edit` - crop, isolate, and clean up the subject for clearer review - `inventory` - maintain a broader catalog once coins are identified - `scanner` - improve flat top-down captures of coins, cards, or documents ## Feedback - If useful: `clawhub star coin-identifier` - Stay updated: `clawhub sync`


Security scan verdicts — ClawScan: clean | static analysis: clean | VirusTotal: clean | SkillSpector: clean (LOW)