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payment_plan_proposal_email

Write emails to propose or confirm payment installments for projects when a client cannot pay the full fee upfront. Supports initiating a plan, responding to requests, or negotiating terms.

Instructions

Write the email proposing or confirming payment installments for a project. For when a client can't pay the full fee upfront, or when you want to proactively offer a payment plan to remove a barrier to closing the deal. Three routes: propose_plan (default — you initiate a structured installment proposal: milestone-based or monthly splits; works for high-value projects where budget is not the issue but cash flow is), respond_to_request (client has already asked for installments and you're confirming what you can offer — tone is helpful and collaborative, not reluctant), negotiate_back (client wants different terms than you proposed — e.g. smaller upfront, more splits — and you're counter-proposing or finding a middle ground while protecting your interests). Distinct from deposit_request_email (collecting an agreed deposit that's already been discussed), budget_negotiation_email (negotiating the total fee, not the payment structure), and payment_reminder_email (chasing a payment already due). Does not count against your monthly draft limit. Required: client_name, total_amount (total project fee — e.g. '$4,500', '£3,000'). Optional: project_name, plan_description (your proposed structure — e.g. '50% upfront, 50% on delivery', '30% to start, 30% at midpoint, 40% on completion', '$500/month over 3 months'), installment_count (number of payments — e.g. '2', '3', 'monthly for 4 months'), client_plan (for negotiate_back route — the terms the client asked for), route ('propose_plan' | 'respond_to_request' | 'negotiate_back' — default propose_plan), your_name.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
client_nameYesClient first name
total_amountYesTotal project fee — e.g. '$4,500', '£3,000', '$12,000'. Required.
project_nameNoOptional: name of the project — e.g. 'the Westbrook website', 'your brand identity', 'the app build'.
plan_descriptionNoOptional: the payment structure you're proposing — e.g. '50% upfront, 50% on delivery', '30% to start, 30% at midpoint, 40% on completion', '$1,500/month over 3 months'. If omitted, a standard 50/50 split is implied.
installment_countNoOptional: number of payments — e.g. '2', '3', '4 monthly payments'. Helps make the email concrete if plan_description is not provided.
client_planNoFor negotiate_back route: the payment structure the client asked for — e.g. '20% upfront and the rest on delivery', 'monthly over 6 months'. Used to acknowledge their ask before counter-proposing.
routeNopropose_plan (default) — you initiate the payment plan offer; respond_to_request — client asked, you're confirming what you can offer; negotiate_back — client wants different terms, you're counter-proposing.
your_nameNoOptional: your name for the sign-off
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It discloses that the tool 'does not count against your monthly draft limit' and explains the three routes. However, it does not mention any side effects, authentication requirements, or error handling, which for a write tool might be expected.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is detailed but well-structured: it opens with the main purpose, then explains when to use it, distinguishes routes, and finally lists parameters. Each sentence adds value, though it could be slightly more concise.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the complexity of three routes and 8 parameters, the description covers the necessary context for using the tool. It explains the routes in detail and distinguishes from siblings. Missing is a description of the output format, but since it's an email generation tool, the output is self-explanatory.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, providing a baseline of 3. The description adds value by explaining the purpose of each optional parameter (e.g., plan_description, installment_count) and providing examples, as well as clarifying the routes and their respective use cases.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Write the email proposing or confirming payment installments for a project.' It uses a specific verb-resource combination and distinguishes itself from siblings like deposit_request_email, budget_negotiation_email, and payment_reminder_email.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description explicitly states when to use the tool: 'when a client can't pay the full fee upfront, or when you want to proactively offer a payment plan.' It also details three routes (propose_plan, respond_to_request, negotiate_back) and lists sibling tools that should be used instead in other scenarios.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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