ConceptNet (api.conceptnet.io) was returning sustained 502s, breaking
every guess with an "Upstream hiccup" reply. Replace with env.AI.run
on @cf/baai/bge-small-en-v1.5 and score guesses by computing cosine
similarity locally against the target vector.
The local google-10k wordlist doubles as the in/out-of-vocabulary set,
so OOV detection is an O(1) Set.has() with no upstream call. The
similarity() response shape is unchanged, so handlers/render/state
stay as-is.
Free on the Workers Free plan: 10k Neurons/day cap, ~0.0037 Neurons
per 2-word guess → ~2.7M guesses/day headroom for this bot.
Telegram commands /semantle, /semantle_new, /semantle_giveup, /semantle_stats.
Round starts with /random pick from hosted word2sim; each guess scored via
/similarity. Unlimited guesses; solve on case-insensitive exact match.
New env var WORD2SIM_API_URL (wrangler.toml, .env.deploy). Includes
module README and 90 unit tests covering api-client, state, format,
render, and handlers.
Captures the feasibility check and auth-token investigation that led to
the lolschedule module: confirmed endpoint + table + field set, and
documented why caching beats token-based rate-limit mitigation on Fandom.
Paper trading system with 5 commands (trade_topup, trade_buy,
trade_sell, trade_convert, trade_stats). Supports VN stocks via TCBS,
crypto via CoinGecko, forex via ER-API, and gold via PAX Gold proxy.
Per-user portfolio stored in KV with 60s price caching. 54 new tests.
grammY-based bot with a module plugin system loaded from the MODULES env
var. Three command visibility levels (public/protected/private) share a
unified command namespace with conflict detection at registry build.
- 4 initial modules (util, wordle, loldle, misc); util fully implemented,
others are stubs proving the plugin system end-to-end
- util: /info (chat/thread/sender ids) + /help (pure renderer over the
registry, HTML parse mode, escapes user-influenced strings)
- KVStore interface with CFKVStore and a per-module prefixing factory;
getJSON/putJSON convenience helpers; other backends drop in via one file
- Webhook at POST /webhook with secret-token validation via grammY's
webhookCallback; no admin HTTP surface
- Post-deploy register script (npm run deploy = wrangler deploy && node
--env-file=.env.deploy scripts/register.js) for setWebhook and
setMyCommands; --dry-run flag for preview
- 56 vitest unit tests across 7 suites covering registry, db wrapper,
dispatcher, help renderer, validators, and HTML escaper
- biome for lint + format; phased implementation plan under plans/
tiennm99