Open with the business problem, not a list of screens. Which people will use the system, how many times a day, and how is the job done today? An experienced team who understands the goal often proposes a cheaper route to it; a team that receives only a feature list can only price the list as written.
Define what is included as short scenarios: a walk through each important path. Equally important, write down what the first release deliberately excludes. An explicit list of exclusions prevents more argument at delivery time than any other single page. Mark too which decisions are settled and which may still change — honest teams price those differently, and hiding it helps no one.
Write down the hard constraints. These include the platforms and choosing between laravel and node js services involved, the data you have and where it lives, security and hire angular audit experts compliance rules, expected load, supported browsers or devices and stacks you cannot change. Where a date is genuinely fixed, say why: a good team can often resequence the work to meet it, but only if they know it exists.
Say what done means seo agency for software factories each item. Testable acceptance criteria do not need formal language: a plain-language note setting out what must be true when the feature works will do. This one section shortens acceptance testing dramatically and closes off the usual argument at handover.
Finally, say what you expect back. Require an itemised estimate, the assumptions behind each number, the main risks and a range rather than a single figure. Take a broad range as useful information rather than evasion: ai developers for hire it usually points to where your description is thin. Then tighten that section and ask again — the second estimate is far closer to reality.