The Vivera Glossary

Vivera is a fictional name inspired by Elli, one of the characters in Harvest Moon: Back to Nature. The pipeline underneath is unchanged; the vocabulary around it borrows from Harvest Moon: Back to Nature (Sony PlayStation, Victor Interactive Software, 1999; published in English by Natsume on 22 November 2000), a farming game about slow, patient work that pays off. The terms below are cosmetic labels for real pipeline concepts. When a document says "ship it", "dispatch the sprites", or "offer the Blue Feather", this is what it means.

This glossary follows the PlayStation game only. Friends of Mineral Town (a Game Boy Advance remake) and the Nintendo DS game reuse the Harvest Sprites' names and look but not all of their rules, so they are not sources here. The sprites differ at least in training minigames (three in Friends of Mineral Town, none documented for Back to Nature). The heart threshold differs too: 2 hearts in Back to Nature and 3 in Friends of Mineral Town, per their wiki pages.

Farm term	In Back to Nature	In Vivera
The farm	The player's land in Mineral Village	This repository
Crops and seeds	What you plant, tend, and ship	Skills and their source files; `install.sh` plants them into every harness it detects (and always into `~/.config/ai` and `~/.agents/skills`)
Power Berry	A hidden berry that permanently raises max stamina by 10; ten of them exist	A permanent capability upgrade: each merged skill or tooling change raises what the pipeline can do in a day
Mystic Berry (Kappa's Berry)	Halves the fatigue rate; earned from Kappa after leaving three cucumbers in Mother Lake, one per spring day	Work that halves context fatigue: token frugality, graphify queries over raw dumps, `ctx_execute` over full output
The seven Harvest Sprites	Chef, Nappy, Hoggy, Aqua, Bold, Timid, and Staid, each in a different color; they live in the hut behind the church and are hired for 1 day, 3 days, or a week, starting the next day, once they have at least 2 hearts	Subagents. Fan-out sends sprites to separate fields, and each sprite owns one small chunk. In Claude Code, OpenCode, Codex, Cursor, Copilot and Antigravity each sprite is a named agent (rendered by `./install.sh` for each detected harness), assigned a role in `agents/crew.json`
Watering	One of the three farm jobs: ask a sprite to water crops, every planted square; skill is tracked per job and rises by 1 per task	Keep-alive work: rebase the session branch, rerun checks, keep in-progress crops alive until harvest
Animal Care	One of the three farm jobs: ask a sprite to feed, milk, and shear animals and ship what they give; same request rules	Long-lived assets: templates, the graph, the vault index, and docs that live across seasons, not one harvest
Harvesting	One of the three farm jobs: ask a sprite to harvest ripe crops and ship them instantly; same request rules	Shipping: gather reports, verify with fresh evidence, toss into the shipping bin (`scripts/pr-registry.mjs`), and propose the Blue Feather
Sprite dispatch affinity	Convention, not game fact: in BTN any sprite can do any of the three jobs. Default affinity only: Aqua and Bold to watering, Hoggy and Chef to harvesting, Nappy Timid and Staid to animal care; skill stays tracked per job as in the game	Dispatch default for fan-out: water-affinity sprites take keep-alive chunks, harvest-affinity sprites take gather-and-ship chunks, care-affinity sprites take long-lived asset chunks. The parent may reassign any sprite to any chunk
The Tea Party	A Spring gathering: on a sunny, non-festival day between 3:00 and 4:00 pm you give each of the seven sprites a gift they love (Flour is easiest) inside their hut, and they invite you; the reward is Relaxation Tea Leaves	The gather-and-synthesize checkpoint: reports are collected only when every dispatched sprite has reported
Affection (heart levels)	Seven colors black, purple, blue, green, yellow, orange, red (black 0 to 4,999; blue 20,000 to 29,999; green 30,000 to 39,999; max 65,535, bright red at 60,000); sprites separately need at least 2 hearts before they work, sprite hearts rise per 25 affection points, and each working day costs a sprite 2 affection	Trust, measured: black to blue is an unverified claim, green to yellow is evidenced work, orange opens the Blue Feather proposal, red is the merged wedding; no sprite report counts before the parent audit gate, the 2-heart rule for subagents
Blue Feather	Sold at the Supermarket for 1,000G once a bachelorette reaches an orange heart; the marriage proposal item, which also needs a red heart and the second house extension	A pull request. Opening one is the proposal, the owner's approval is the yes, and the merge is the wedding
Ores and Saibara's Forge	Mythril, Orichalcum, and Adamantite dug from the mine; Saibara forges Orichalcum into an accessory for 1,000G and a three-day wait	Raw contributions are ore. The REFACTOR pass and the review forge them into tools, and forging has a cooldown on purpose
The Shipping Bin and Zack	Produce goes in the bin and is collected and paid for each evening	The PR registry (`scripts/pr-registry.mjs`). Sessions toss verified work in, `order` computes the pickup route, and `merged` means shipped and paid
Won	The traveling peddler who shows up with rare goods	The optional-tools bazaar: tgrep, rtk, context-mode, snipset, graphify. Powerful, oddly priced, and strictly opt-in
House extensions and the Greenhouse	The farmhouse grows through extensions, and the greenhouse grows crops in any season	Repo maturity: each capability (templates, deep research, vault indexing, the graph) is a new wing. `graphify-out/` is the greenhouse: it grows in any codebase, in any season
Seasons	Spring, Summer, Fall, and Winter, thirty days each	The delivery lifecycle: Spring plants the idea (brainstorm), Summer tends the plan (design and approval), Fall brings the harvest (TDD, verification, PR), and Winter is for the hearth (debt sweep, ledger, memory)
Stamina and fatigue	Stamina drains as you work; at zero you pass out and lose the morning	The agent's context budget. Power Berries raise the ceiling, the Mystic Berry halves the burn, and compaction is passing out
Festivals	The town calendar: Goddess Festival, Harvest Festival, Fireworks Display, Starry Night	Release milestones; a new version may take a festival name

Naming

Vivera is a fictional name inspired by Elli, one of the characters in Harvest Moon: Back to Nature. It is not the name of a farm or a place in the game, and the repository is only called the farm in the game-inspired vocabulary.

Sources

Game facts above were checked against fan guides on 2026-10-03 and 2026-10-04, and the Harvest Sprite rows were rechecked against Back to Nature sources only on 2026-10-11; rows backed by a listed source are covered by it, and the rest (such as the thirty-day seasons and the town names) are general game lore.

Skyrender, The Hitchhiker's Guide to HM:BTN (https://www.skyrender.net/hmbtn_pb.html), fetched 2026-10-03: all ten Power Berry locations (+10 max stamina each) and the Mystic Berry ritual (three cucumbers into Mother Lake in spring, after noon).
Harvest Moon Wiki (Fandom), search snippets for "Power Berry (BTN)", "Mystic Berry (BTN)", "Blue Feather (BTN)", and "Harvest Sprites (BTN)", accessed 2026-10-03: +10 stamina per berry; the Mystic Berry halves the fatigue rate; the Blue Feather is sold at the Supermarket for 1,000G at an orange heart; the seven sprites are Chef, Nappy, Hoggy, Aqua, Bold, Timid, and Staid.
Ranch Story wiki, Items List (Harvest Moon: Back to Nature) (https://ranchstory.miraheze.org/wiki/Items_List_(Harvest_Moon:_Back_to_Nature)), accessed 2026-10-03: Mythril ore 40G, Orichalcum 50G, Adamantite 50G.
GameFAQs, Harvest Moon: Back to Nature Guide and Walkthrough (faqs/10669, 2001-02-16), snippet: Saibara forges an Orichalcum accessory for 1,000G, ready after three days.
Harvest Moon: Back to Nature Guide (https://www.harvestmoonbacktonatureguide.com/girls.html), accessed 2026-10-03: heart level affection point ranges (blue 20,000 to 29,999; green 30,000 to 39,999).
Harvest Moon: Back to Nature Guide, Secrets page (https://www.harvestmoonbacktonatureguide.com/secrets.html), fetched 2026-10-11: Relaxation Tea Leaves come from the Spring tea party; on a sunny, non-festival day between 3:00 and 4:00 pm, give each sprite a gift they love (Flour is easiest) without leaving their house, and they invite you.
Removed as a Back to Nature source on 2026-10-11: Ushi No Tane, Characters Harvest Sprites (https://fogu.com/hm4/peeps/sprites.htm). The hm4 section of that site is Harvest Moon: Friends of Mineral Town (Game Boy Advance), not Back to Nature (https://fogu.com/hm4/ is titled "Harvest Moon: Friends of Mineral Town"). It had supplied 3 hearts, 1/3/7-day requests from the next morning, colored-grass gifts, three training minigames, and the Staid indigo and Bold violet labels, and an earlier version of the rows above repeated them as Back to Nature facts. None of those are asserted for Back to Nature now. The Fandom FoMT page ("Harvest Sprites (FoMT)", fetched 2026-10-11) likewise lists 3 hearts and three minigames, which the Fandom BTN page does not; that difference exposed the mix-up. The forum thread "Harvest Sprite Tea Party" (fogu.com/hmforum, t=174351) is also dropped, because its game was never checked.
Harvest Moon Wiki (Fandom), "Harvest Sprites (BTN)" search snippets, accessed 2026-10-04: hired for watering crops, harvesting crops, and animal care; one job per sprite per day; hidden skill level per job starts at 0 and rises by 1 per task; the seven colors span the rainbow (red, orange, yellow, green, blue, purple, indigo).
Harvest Moon: Back to Nature Guide, Girls page (https://www.harvestmoonbacktonatureguide.com/girls.html), rechecked 2026-10-04: seven heart levels with point bands (black 0 to 4,999; blue 20,000 to 29,999); GameFAQs calendar guide: max affection 65,535 with bright red at 60,000; scribd affection guide snippet: sprite hearts rise per 25 affection points with per-job skill max 255.
Harvest Moon: Back to Nature Guide, Characters page (https://www.harvestmoonbacktonatureguide.com/characters.html), a guide written for the PS1 game, fetched 2026-10-11: the sprites are in the small hut behind the church; talk to one twice to get work done, five times in Spring because of the tea party; hearts rise per 25 affection points; each working day costs 2 affection; a hidden skill per job starts at 0, rises 1 per job done, and maxes at 255; all sprites share likes and dislikes; birthdays Chef Fall 14, Nappy Winter 22, Hoggy Fall 10, Timid Summer 16, Aqua Spring 26, Staid Spring 15, Bold Spring 4. The page states no heart threshold. Its Girls page, same date: heart levels black, purple, blue, green, yellow, orange, red (red is 60,000 to 65,535).
Harvest Moon Wiki (Fandom), "Harvest Sprites (BTN)" (https://harvestmoon.fandom.com/wiki/Harvest_Sprites_(BTN)), full page read 2026-10-11: at least 2 hearts; hire for 1 day, 3 days from tomorrow, or 1 week from tomorrow; only Summer, Fall, and Winter, while in Spring a sprite refuses unless you talk to it 5 times in a row; one job per request; harvesting ships crops instantly; animal care feeds, milks, and shears; sprites work through hurricanes and blizzards; identical apart from hat and shirt color; Chef red, Nappy orange, Hoggy yellow, Timid green, Aqua light blue, Staid dark blue (its trivia says indigo), Bold purple; a fourth-year event where Chef carries a lantern (the wiki's Back to Nature Screenshots category also holds Chefevent.png). The page's navigation box lists Back to Nature and Boy & Girl together. Decision (repository owner, 2026-10-11): this page is the reference for the game's rules, so its 2-heart threshold and its storm rule (sprites still come) are used as written. No PS1 guide gives a heart number, the IGN FAQ agrees with the wiki on storms, and the GameFAQs walkthrough says the opposite. The 1-day, 3-day, and 1-week hire options are listed here and were confirmed by the repository owner from playing the game (2026-10-11); no PS1 guide lists the 1-day and 3-day ones (the GameFAQs walkthrough shows 1 week). Staid's color varies between sources: this page's table says dark blue, its trivia and the FoMT page say indigo, the IGN FAQ and Ushi No Tane say blue or indigo, and Ranch Story says green.
GameFAQs, Harvest Moon: Back to Nature - Guide and Walkthrough - PlayStation, by Sky_Render (https://gamefaqs.gamespot.com/ps/446412-harvest-moon-back-to-nature/faqs/26294), fetched 2026-10-11: the sprites are seven elfling brothers who live behind the church; the better they like you, the more likely they offer to help, and no heart number is given; jobs are watering, harvesting, or tending animals, and only when the job needs doing; they start the next day; a blizzard or hurricane keeps them away; the IGN FAQ below says the opposite about storms; hearts rise per 25 points, each working day costs 2 affection, and skill rises 1 per job per working day up to 255; the walkthrough hires them for 1 week; its calendar lists Hoggy Fall 10, Chef Fall 14, Timid Summer 16, and Nappy Winter 22.
GameFAQs, Harvest Moon: Back to Nature - Marriage FAQ - PlayStation, by Mateui N., 2001 (https://gamefaqs.gamespot.com/ps/446412-harvest-moon-back-to-nature/faqs/13757), fetched 2026-10-11: marriage needs the second house extension, a girl with a red heart, and a Blue Feather bought at the Supermarket for 1,000G; orange means dating and red means in love. The PS1 guide's Girls page says "pink" once but its own table says red, so pink is treated as a slip.
Ranch Story wiki, Harvest Sprites (Harvest Moon: Back to Nature) (https://wiki.ranchstory.farm/index.php/Harvest_Sprites_(Harvest_Moon:_Back_to_Nature)), fetched 2026-10-11: a stub that lists different birthdays (Chef Spring 14, Nappy Summer 22, Hoggy Spring 10, Timid Spring 16) and colors (Staid green, Bold dark blue, which gives two greens and no purple). Two PS1 guides list Chef Fall 14, Hoggy Fall 10, Timid Summer 16, and Nappy Winter 22, so those dates and the page's Staid and Bold colors are not used.
Ushi No Tane, Back To Nature - Harvest Sprites (https://fogu.com/hm/btn/harvestsprites.php), the Back to Nature section of that site (not hm4), fetched 2026-10-11: Bold purple, Staid indigo, Aqua blue, Timid green, Hoggy yellow, Chef red, Nappy orange; birthdays Bold Spring 4, Staid Spring 15, Aqua Spring 26, Timid Summer 16, Hoggy Fall 10, Chef Fall 14, Nappy Winter 22; the sprites live in a small hut in the back of the church; they work if you talk to them twice, and in Spring you must talk to each one 5 times because of the tea party; give them a present when they finish so they work better next time; they love flour. No heart number is given.
IGN, Harvest Moon: Back to Nature Walkthrough/FAQ (https://www.ign.com/articles/2003/03/14/harvest-moon-back-to-nature-walkthroughfaq-389474), a reader-written FAQ for the PS1 game, fetched 2026-10-11: personality lines that the author says come from the in-game library: Chef loves to cook, Nappy is the one the brothers live with (a house offered by the villagers), Hoggy loves to sleep and is lazy, Timid is easily scared, Aqua likes to dress nicely, Bold is brave and scares others with a battle cry; colors Staid blue, Aqua light blue, Bold purple; "The more hearts they have, the more productive they will be"; and "You really need them to take care of your animals on bad weather days like snowstorm or hurricane", which contradicts the GameFAQs walkthrough. The "hardworking meter" in it is the author's own judgment and is not used, and its Aqua birthday (Spring 24th) disagrees with every other source (Spring 26).
atwiki, Harvest Moon Boy & Girl @ Wiki, Harvest Sprites (https://w.atwiki.jp/harvestmoon/pages/27.html), a Japanese wiki for the PSP remake, fetched 2026-10-11: a sprite needs at least 2 hearts to be asked; in Spring it refuses until you talk to it 5 times, which lowers affection; a job can be asked only if there is work left; the PS "for Girl" version accepts even with no work left; hired sprites do not come in a typhoon or heavy snow; Bold and Staid have the early birthdays of Spring 4 and Spring 15. It describes the PSP game, not the PS1 game, but its 2-heart figure agrees with the wiki.
CrystalMaiden77, "Harvest Moon Back to Nature vs FoMT" (https://crystalmaiden77.wordpress.com/2025/01/24/harvest-moon-back-to-nature-vs-fomt/), fetched 2026-10-11: not used. The author plays the PSP port, and the 3-hearts remark about hiring sprites is uncited.
Harvest Moon Wiki (Fandom), "Harvest Sprites (FoMT)" (https://harvestmoon.fandom.com/wiki/Harvest_Sprites_(FoMT)), fetched 2026-10-11: used only to tell the two games apart (3 hearts, three minigames, Aqua blue, Staid indigo, Bold purple); no row above relies on it.
Wikipedia, Harvest Moon: Back to Nature (https://en.wikipedia.org/wiki/Harvest_Moon:_Back_to_Nature), fetched 2026-10-11: PlayStation release Japan 16 December 1999, North America 22 November 2000, Europe 26 January 2001; developed by Victor Interactive Software and published outside Japan by Natsume; Friends of Mineral Town is described as a remake of this game.
Harvest Moon Wiki (Fandom), file pages, checked 2026-10-11: Harvest Sprite <color> 1.png is in the category HMDS Portraits (Nintendo DS) and the Th_*.png thumbnails are in Friends of Mineral Town Portraits, so neither is Back to Nature art. The README illustration is BTN_Sprites.jpg (category Back to Nature Character Pictures, credited to Ranch Story).