diff --git a/doc/api/assert.md b/doc/api/assert.md
index e28c2cf705..019de3f0cf 100644
--- a/doc/api/assert.md
+++ b/doc/api/assert.md
@@ -9,6 +9,8 @@ test invariants.
 <!-- YAML
 added: v0.5.9
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+* `value` {any}
+* `message` {any}
 
 An alias of [`assert.ok()`][] .
 
@@ -41,6 +43,9 @@ changes:
     pr-url: https://github.com/nodejs/node/pull/5910
     description: Handle non-`Uint8Array` typed arrays correctly.
 -->
+* `actual` {any}
+* `expected` {any}
+* `message` {any}
 
 Tests for deep equality between the `actual` and `expected` parameters.
 Primitive values are compared with the [Abstract Equality Comparison][]
@@ -116,6 +121,9 @@ changes:
     pr-url: https://github.com/nodejs/node/pull/5910
     description: Handle non-`Uint8Array` typed arrays correctly.
 -->
+* `actual` {any}
+* `expected` {any}
+* `message` {any}
 
 Generally identical to `assert.deepEqual()` with two exceptions:
 
@@ -150,6 +158,9 @@ changes:
     pr-url: https://github.com/nodejs/node/pull/3276
     description: The `error` parameter can now be an arrow function.
 -->
+* `block` {Function}
+* `error` {RegExp|Function}
+* `message` {any}
 
 Asserts that the function `block` does not throw an error. See
 [`assert.throws()`][] for more details.
@@ -205,6 +216,9 @@ assert.doesNotThrow(
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+* `actual` {any}
+* `expected` {any}
+* `message` {any}
 
 Tests shallow, coercive equality between the `actual` and `expected` parameters
 using the [Abstract Equality Comparison][] ( `==` ).
@@ -231,6 +245,10 @@ parameter is undefined, a default error message is assigned.
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+* `actual` {any}
+* `expected` {any}
+* `message` {any}
+* `operator` {String}
 
 Throws an `AssertionError`. If `message` is falsy, the error message is set as
 the values of `actual` and `expected` separated by the provided `operator`.
@@ -250,6 +268,7 @@ assert.fail(1, 2, 'whoops', '>');
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+* `value` {any}
 
 Throws `value` if `value` is truthy. This is useful when testing the `error`
 argument in callbacks.
@@ -271,6 +290,9 @@ assert.ifError(new Error());
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+* `actual` {any}
+* `expected` {any}
+* `message` {any}
 
 Tests for any deep inequality. Opposite of [`assert.deepEqual()`][].
 
@@ -315,6 +337,9 @@ parameter is undefined, a default error message is assigned.
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+* `actual` {any}
+* `expected` {any}
+* `message` {any}
 
 Tests for deep strict inequality. Opposite of [`assert.deepStrictEqual()`][].
 
@@ -336,6 +361,9 @@ the `message` parameter is undefined, a default error message is assigned.
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+* `actual` {any}
+* `expected` {any}
+* `message` {any}
 
 Tests shallow, coercive inequality with the [Abstract Equality Comparison][]
 ( `!=` ).
@@ -361,6 +389,9 @@ parameter is undefined, a default error message is assigned.
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 added: v0.1.21
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+* `actual` {any}
+* `expected` {any}
+* `message` {any}
 
 Tests strict inequality as determined by the [Strict Equality Comparison][]
 ( `!==` ).
@@ -386,6 +417,8 @@ If the values are strictly equal, an `AssertionError` is thrown with a
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 added: v0.1.21
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+* `value` {any}
+* `message` {any}
 
 Tests if `value` is truthy. It is equivalent to
 `assert.equal(!!value, true, message)`.
@@ -413,6 +446,9 @@ assert.ok(false, 'it\'s false');
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 added: v0.1.21
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+* `actual` {any}
+* `expected` {any}
+* `message` {any}
 
 Tests strict equality as determined by the [Strict Equality Comparison][]
 ( `===` ).
@@ -442,6 +478,9 @@ changes:
     pr-url: https://github.com/nodejs/node/pull/3276
     description: The `error` parameter can now be an arrow function.
 -->
+* `block` {Function}
+* `error` {RegExp|Function}
+* `message` {any}
 
 Expects the function `block` to throw an error.