A preliminary set of skills and a brief description of what they cover (by no means a completely list I'm sure).
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Acrobatics: The ability to preform tasks using a combination of strength, physical agility, flexibility, coordination and balance.
Alchemy: Making, or identifying salves, potions, tinctures and other remedies or concoctions.
Animal Care: Taking care of animals. Such as routine care, feeding and grooming (such as for parades or market) as well as noticing disease or discomfort and the ability to heal injuries.
Animal Handling: Calming, training and other simple communication with animals.
Animal Lore: Knowledge of animal (including birds, fish and insects) behaviours, habitats and development.
Architecture: Knowledge of large structures and buildings, including designs, defences and plans.
Art: The production of physical works of art such as paintings, sculptures and other fine art.
Awareness: An individuals scenes and ability to notice things around them, consciously or otherwise.
Axes: The ability to use axes in battle.
Blades: The ability to use daggers, knives and light swords in battle.
Bludgeons: The ability to use maces and hammers in battle.
Botany: Knowledge of plants, growing locations and their potential effects and uses.
Bows: The ability to use bows or crossbows in battle.
Bowyer: Making, repairing and identifying bows and crossbows as well as arrows and bolts
Brawling: The ability to fight while unarmed or using make-shift weaponry
Brewing: Making or identifying drinks, be they alcoholic or not in nature.
Carousing: Resisting the effects of alcohol and similar drugs
Carpentry: Making, repairing or identifying things made from wood.
Cartography: Making and reading maps and charts
Channelling: Controlling and focusing of magic and other supernatural powers.
Climbing: Scaling walls, cliffs, trees and other surfaces.
Concentration: Keeping focused on a task in the face of other distractions.
Contortion: Twisting and turning ones body to escape bonds or fit through tight spaces
Cooking: Preparing, making and identifying various types of prepared foods.
Cosmology: Knowledge of the sky, space and time.
Courage: Confidence and the ability to overcome fear.
Culture Lore: Knowledge of a certain culture's behaviours, beliefs, structure and traditions.
Dance: Performing and identifying various forms of dance for entertainment of yourself or others.
Deception: Lying, tricking or otherwise deceiving others.
Diplomacy: Knowledge of the procedures and practices to gain strategic advantages or mutually acceptable outcomes.
Disguise: Changing the appearance of oneself or others to look as if they are someone or something else.
Dodge: The ability to avoid or evade attacks, traps or similar harmful effects.
Driving: Controlling and manoeuvring land based vehicles.
Eldritch Lore: Knowledge of magic and the supernatural
Empathy: Sensing and feeling other emotional states
Engineering: Making, repairing or identifying mechanical machines or their procedures
Etiquette: Knowing the correct behaviours, structure and traditions of different social classes.
Evaluation: Determining the value goods, art and other valuables.
Explosives: Using, disarming, identifying or creating explosives and incendiaries.
Faith: Knowing religious practices and traditions and developing inner strength from those teachings.
Farming: Growing, harvesting and preparing of plants. Including the ability to identify afflictions and health of said crops.
Firearms: The ability to use rifles and pistols in battle.
Fishing: Finding and catching food from bodies of water.
Gambling: Knowing and playing games of chance, including cheating at said games.
Geography: Knowledge of terrain, lands, borders and topography
Gossip: Gaining rumours, latest news, and engaging in informal conversations.
Haggle: Negotiating deals and prices with others.
Heal: Providing medical assistance to the sick and wounded
Heraldry: Identifying crests, symbols and markings of note.
History: Knowledge of past events, beliefs, behaviours and traditions.
Hunting: Finding and catching live food on land.
Hypnotism: The ability to put someone into a trance to gain truths (as they know it) or other knowledge they may or may not consciously be aware of.
Intimidation: Overawing others with threats or physical presence to coerce or frighten them.
Interrogation: Extracting truthful information from others.
Investigation: Gaining information from places, situations and events through observation and deduction.
Jeweller: Making, repairing and identifying objects of decorative value.
Law: Knowledge of laws, procedures and punishments of governing bodies.
Leadership: The knowledge and ability to guide, direct or inspire others
Leather-work: Making, repairing and identifying objects made from animal hides.
Legerdemain: Manual dexterity of the hands. Typically used for slight of hand, picking pockets, and other tricks or deceptions.
Lip Reading: The ability to discern what others are saying through watching them, without the need to hear them.
Lock Picking: The ability to open locks without a key or manipulate other small mechanical devices
Mason: Making, repairing and identifying things made of stone.
Might: The ability to perform tasks using physical power. While not just brute strength, this also covers an individuals ability to use that raw power to achieve a goal.
Mining: Finding, unearthing and identifying raw materials of value or use.
Morale: Maintaining confidence and good spirits in yourself and your group.
Music: The ability to play or compose for a musical instrument, typically to entertain others.
Navigation: Find and plot directions and paths on land or sea.
Numeracy: The ability to use maths and numbers.
Persuasion: The ability to convince others of something.
Philosophy: The investigation and study of truth, being, knowledge and conduct.
Poison: Make, use or identify poisons
Reading: The ability to read and decipher written language.
Research: Gathering information from books, archives, records, tales, legends or other similar areas.
Riding: Directing or controlling a mount.
Rituals: Knowledge of rituals, ceremonies or traditions, as well as knowing the paraphernalia and procedures to conduct them.
Rope Use: Making knots and hitches in rope, strap, string, webbing, twine, etc.
Rowing: Controlling and manoeuvring water-born craft through the use of oars and poles.
Sailing: Controlling and manoeuvring waterborne craft propelled by wind and sails.
Searching: Actively looking for things hidden or concealed
Secret Language: Communicating with others using code and signals as well as markings and signs.
Seduction: The ability to persuade or entice towards amorous activity.
Self-Discipline: Controlling ones impulses or emotions and the ability to focus ones mind.
Science: The study and application of the natural world.
Singing: Performing, identifying and composing songs and other vocal tunes.
Smithing: Making, repairing and identifying things created from metals.
Spears: The ability to use spears and similar thrusting type weapons in battle.
Stamina: Enduring physical shock, stress, fatigue, privation and disease.
Staves: The ability to use staves and other pole-like weapons in battle.
Stealth: Hiding or concealing oneself or objects from the notice of others.
Streetwise: Knowing the correct behaviour, procedures and traditions of interacting with the underclass.
Survival: The ability to find shelter, potable water, and forage for basic 'food'.
Swimming: The ability to stay afloat and propel oneself through water.
Swords: The ability to use sword type weapons in battle.
Tactics: Knowledge of strategy and manoeuvres, typically in battle or by military organisations.
Tailor: Making, repairing or identifying clothing.
Torture: Extracting or compelling information through physical or mental stress.
Traps: Disarming, setting, making, repairing or identifying traps.
Tracking: Following or gaining information from tracks, trails or other signs of disturbance
Ventriloquism: The ability to throw ones voice to another location.
Wrestling: The ability to use holds, locks and grabs to incapacitate an opponent.
Writing: The ability to write a language for communication.
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Current considerations are combining reading and writing into one skill.

Also let me know if any other skills seem to overlap allot, or if there area any glaring omissions.
Also if I seem way of on a skill description from what it is, let me know too as I'm trying to keep skills as intuitive as possible.