get_rasi_phalalu

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

With no annotations provided, the description carries the full behavioral burden and does so well: it states the output is deterministic, every line maps to a calculation, and specific conditions affect the content (e.g., Sade Sati shown only when running, janma_nakshatra adds the tara line). It stops short of describing edge-case behavior such as missing city data or invalid rasi names, but the core behavior is clearly disclosed.

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

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

The description is dense but every clause earns its place: the purpose is front-loaded, the behavioral guarantees are stated compactly, and the argument list uses consistent formats and defaults. There is no repetition or filler.

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

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

For an 8-parameter tool with no schema descriptions, the description covers most invocation details and the output content is well specified. The main gap is the timezone parameter, which is not explained even though it can affect date-based calculations, and the interaction between city, latitude/longitude, and timezone is left unclear. The output schema exists, so return-value documentation is not required.

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

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

The schema has 0% description coverage, so the description must compensate. It does: date gets an exact format, janma_rasi gets an example, janma_nakshatra gets its purpose, city gets an alternative latitude/longitude form, and ayanamsa gets an explicit enum with a default. However, the timezone parameter is not mentioned at all, and the latitude/longitude guidance is compressed into a shorthand that may be ambiguous about which schema fields to populate.

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

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

The description clearly identifies the tool as a deterministic daily reading for a janma rasi and enumerates the exact components it produces (chandrabalam, gochara verdicts with vedha, Sade Sati/Ashtama Shani, tarabalam). This distinguishes it from sibling tools like get_panchangam or get_gochara, which produce raw astrological data rather than a compiled daily reading.

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

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

The description implies usage through phrases like 'Daily Rasi Phalalu' and 'for a janma rasi,' making it clear this is for personalized daily readings. However, it never explicitly says when to prefer this tool over overlapping siblings such as get_gochara, find_tarabalam_days, or get_panchangam, nor does it mention any exclusions or alternatives.

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