docs: address Copilot review comments on tick/lot size guidance

- Fix variable extraction: assign tickSize/lotSize to shell vars before
  using in rounding snippets (CONTEXT.md, AGENTS.md, CLAUDE.md)
- Correct --validate description: local JSON preview only, no
  exchange-side price/qty validation (CONTEXT.md, AGENTS.md)
- Add --yes to live order example and note it's required for agent use
  (AGENTS.md, CLAUDE.md)

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

Author: byshing

AGENTS.md

@@ -280,7 +280,9 @@ Every instrument enforces a minimum price increment (`tickSize`) and minimum qua
 Fetch constraints before placing:
 
 ```bash
-bitmex market instrument --symbol XBTUSD -o json | jq '.[0] | {tickSize, lotSize}'
+constraints=$(bitmex market instrument --symbol XBTUSD -o json | jq '.[0] | {tickSize, lotSize}')
+tick_size=$(echo "$constraints" | jq -r '.tickSize')
+lot_size=$(echo "$constraints" | jq -r '.lotSize')
 ```
 
 Round before submitting:
@@ -295,13 +297,13 @@ qty=$(echo "$raw_qty $lot_size" | awk '{printf "%g", int($1/$2)*$2}')
 ### Safe order placement workflow
 
 ```bash
-# 1. Fetch tick/lot constraints
-bitmex market instrument --symbol XBTUSD -o json | jq '.[0] | {tickSize, lotSize}'
+# 1. Fetch tick/lot constraints and align price/qty before submitting
+constraints=$(bitmex market instrument --symbol XBTUSD -o json | jq '.[0] | {tickSize, lotSize}')
 
-# 2. Validate (catches price/qty alignment errors before submission)
+# 2. Preview the constructed request body (local only — does not validate against exchange)
 bitmex order buy XBTUSD 100 --price 50000 --validate -o json
 
-# 3. Confirm with user, then execute
+# 3. Confirm with user, then execute (--yes skips interactive prompt for agent use)
 bitmex order buy XBTUSD 100 --price 50000 --yes -o json
 ```
 

CLAUDE.md

@@ -95,13 +95,15 @@ Prices must be multiples of `tickSize`; quantities must be multiples of `lotSize
 
 ```bash
 # Fetch constraints
-bitmex market instrument --symbol XBTUSD -o json | jq '.[0] | {tickSize, lotSize}'
+constraints=$(bitmex market instrument --symbol XBTUSD -o json | jq '.[0] | {tickSize, lotSize}')
+tick_size=$(echo "$constraints" | jq -r '.tickSize')
+lot_size=$(echo "$constraints" | jq -r '.lotSize')
 
-# Validate first
+# Preview request body (local dry-run only — no exchange-side validation)
 bitmex order buy XBTUSD 100 --price 50000 --validate -o json
 
-# Then execute (requires user confirmation)
-bitmex order buy XBTUSD 100 --price 50000 -o json
+# Execute (--yes required for non-interactive/agent use)
+bitmex order buy XBTUSD 100 --price 50000 --yes -o json
 ```
 
 ### Testnet

CONTEXT.md

@@ -200,7 +200,9 @@ bitmex ws --auth position order execution
 Before placing an order, fetch the instrument's constraints:
 
 ```bash
-bitmex market instrument --symbol XBTUSD -o json | jq '.[0] | {tickSize, lotSize}'
+constraints=$(bitmex market instrument --symbol XBTUSD -o json | jq '.[0] | {tickSize, lotSize}')
+tick_size=$(echo "$constraints" | jq -r '.tickSize')
+lot_size=$(echo "$constraints" | jq -r '.lotSize')
 ```
 
 | Field | Meaning | Violation error |
@@ -217,7 +219,7 @@ price=$(echo "$raw_price $tick_size" | awk '{printf "%g", int($1/$2+0.5)*$2}')
 qty=$(echo "$raw_qty $lot_size" | awk '{printf "%g", int($1/$2)*$2}')
 ```
 
-`--validate` catches these errors before the order reaches the exchange.
+`--validate` is a local dry-run that prints the constructed order JSON without submitting to the exchange. It does not perform server-side price/qty validation — alignment must be correct before live submission.
 
 ## MCP Server